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Locks-and-keys is a solution to dangling pointers in computer programming languages. The locks-and-keys approach represents pointers as ordered pairs
Locks-and-keys_(computing)
Topics referred to by the same term
and key, and the keys are incompatible Lock and key model, a model for the specificity of enzymes and other of biomolecules Locks-and-keys (computing)
Lock_and_Key
Key used to open and/or start an automobile
by special key cutting machines made for them. Transponder keys may also be called "chip keys". Transponder keys are automotive ignition keys with signal-emitting
Car_key
Input device
diodes are used, then the number of unique keys detectable is doubled. Arrow keys Keyboard (computing) Key rollover Mobile phone Rotary dial Silicone
Keypad
Keyboard setting
LOCK is a function that locks part of a keyboard's keys into a distinct mode of operation, depending on the lock settings selected. Most keyboards have
Lock_key
American lock manufacturer
unauthorized duplication of Medeco M3 and Medeco Biaxial keys, and a means of deploying a bump attack against Medeco M3 locks. "NY Brooklyn Locksmith". Monday
Medeco
American PC peripheral maker
company produces peripherals including docking stations, mice, and cable locks for laptops and other devices. Headquartered in Burlingame, California, Kensington
Kensington Computer Products Group
Kensington_Computer_Products_Group
Topics referred to by the same term
Look up lock or locks in Wiktionary, the free dictionary. Lock(s) or locked may refer to: Lock, a mechanical fastening device Lock of hair, a piece of
Lock
Programming paradigm in which many processes are executed simultaneously
Historically parallel computing was used for scientific computing and the simulation of scientific problems, particularly in the natural and engineering sciences
Parallel_computing
1982 video game
off-screen and hops directly at Shamus, unhindered by the walls. If shot, the Shadow briefly freezes in place. The combination of locks and keys requires
Shamus_(video_game)
Data structure that can be used by multiple threads
data structure) is a data structure designed for access and modification by multiple computing threads (or processes or nodes) on a computer, for example
Concurrent_data_structure
Design principle in computer science
locks, and connections) unchanged. Contrast this with issuing physical keys: if you want to change who can open a door, you have to issue new keys and
Separation of mechanism and policy
Separation_of_mechanism_and_policy
Available computing resource
it) and handling resource contention (when multiple processes want to access the same resource). Computing resources are used in cloud computing to provide
System_resource
Data input device
several keys simultaneously or in sequence. While most keys produce characters (letters, numbers or symbols), other keys (such as the escape key) can prompt
Computer_keyboard
This glossary lists types of keys as the term is used in cryptography, as opposed to door locks. Terms that are primarily used by the U.S. National Security
Glossary of cryptographic keys
Glossary_of_cryptographic_keys
Joke ransomware
as the decryption keys are not locally stored. Heo later released a piece of software—setting the score in game's memory directly and satisfying the Rensenware
Rensenware
Multithreaded to allow concurrent access
function. Concurrent hash tables represent a key concurrent data structure for use in concurrent computing which allow multiple threads to more efficiently
Concurrent_hash_table
Procedure in computing
(ETL) is a three-phase computing process where data are extracted from an input source, transformed (including cleaning), and loaded into an output data
Extract,_transform,_load
1984 video game
treasure is stored in a chest with fifteen locks, with the keys guarded by various monsters (e.g. orcs, slime moulds and spiders) in the dungeons of Firetop
The Warlock of Firetop Mountain (video game)
The_Warlock_of_Firetop_Mountain_(video_game)
Robustness properties for database transactions
techniques: write-ahead logging and shadow paging. In both cases, locks must be acquired on all information to be updated, and depending on the level of isolation
ACID
Access control device for nuclear weapons
two separate locks so that a single crew member cannot open the safe alone. Both crew members must simultaneously turn the four launch keys. An additional
Permissive_action_link
example of the analog hole. Both title keys and one of the keys used to decrypt them (known as Processing Keys in the AACS specifications) have been found
Security of Advanced Access Content System
Security_of_Advanced_Access_Content_System
Database server and application server
Free and open-source software portal Tarantool is an in-memory computing platform with a flexible data schema, best used for creating high-performance
Tarantool
Cryptographic network protocol
public key also owns the matching private key. In all versions of SSH, it is important to verify unknown public keys, i.e., associate the public keys with
Secure_Shell
Free and open-source disk encryption utility
the TRIM command for both system and non-system drives was added in version 1.22. Erasing the system encryption keys from RAM during shutdown/reboot helps
VeraCrypt
Distributed key-value database
later donated to the Cloud Native Computing Foundation (CNCF). It became a CNCF incubating project in December 2018, and graduated in November of 2020. At
Etcd
In computing, restricting data to be accessible by one thread at a time
Distributed Computing, retrieved 24 August 2009 Attiya, Hagit; Welch, Jennifer (25 March 2004). Distributed computing: fundamentals, simulations, and advanced
Mutual_exclusion
Tree-based computer data structure
because the maximum number of keys is unclear. An order 3 B-tree might hold a maximum of 6 keys or a maximum of 7 keys. Knuth (1998) avoids the problem
B-tree
Concept in computer science, referring to processes, or data
variety of user-level synchronization operations, including things such as locks and barriers. In general, architects do not expect users to employ the basic
Synchronization (computer science)
Synchronization_(computer_science)
2026 American company IPO
June 2026, Google signed a similar cloud computing agreement to pay $920 million monthly for cloud compute capacity from Colossus, without specifying
Initial public offering of SpaceX
Initial_public_offering_of_SpaceX
Standard for content distribution and digital rights management
control and restrict the use of digital media. It encrypts content under one or more title keys using the Advanced Encryption Standard (AES). Title keys are
Advanced Access Content System
Advanced_Access_Content_System
Mechanical machine for arithmetic operations for absolute calculators
first 10-key computing machine sold in large numbers. Olivetti Divisumma-14 (1948) was the first computing machine with both printer and a 10-key keyboard
Mechanical_calculator
Thread safe Map collections for concurrency in Java
entries, each entry holding a key, a value, the hash, and a next reference. Previous to Java 8, there were multiple locks each serializing access to a
Java_ConcurrentMap
Overview of and topical guide to computer security
components. And they may be used on a computer to disallow it from being turned on or used without a physical key. There are also locks to attach cables
Outline_of_computer_security
Protection of computer systems from information disclosure, theft or damage
digital security, such as electronic passwords and encryption, physical security measures, such as metal locks, are still used to prevent unauthorized tampering
Computer_security
Computer software
Virtuoso provides dynamic locking, starting with row level locks and escalating to page level locks when a cursor holds a large percentage of a page's rows
Virtuoso_Universal_Server
Technology to control access to copyrighted works and prevent unauthorized copying
Volker (2003), "Vom PC zum TC: Trusted Computing und Digital Restrictions Management" (PDF), Trusted Computing, Kommunikation & Recht, Frankfurt am Main:
Digital_rights_management
Parallel distributed file system
generally used for large-scale cluster computing. The name Lustre is a portmanteau word derived from Linux and cluster. Lustre file system software is
Lustre_(file_system)
Programming paradigm based on applying and composing functions
hazards, since concurrent operations are usually atomic and this allows eliminating the need for locks. This is how for example java.util.concurrent classes
Functional_programming
Multi-tool electronic device
Bluetooth Low Energy protocol. Secret keys stored in the Secure Enclave of STM32WB55 are used to decrypt cryptographic keys on the fly, which are then applied
Flipper_Zero
Internet-like structure connecting everyday physical objects
goods (supply chain), industrial Internet, pervasive computing, pervasive sensing, ubiquitous computing, cyber-physical systems (CPS), wireless sensor networks
Internet_of_things
Game company started in 1979 by Allen Eldridge and Stephen Cole
Shiva Option and Insurrection. Eldridge sold the company to New World Computing in 1988, which became a division of The 3DO Company in 1996 and went out of
Task_Force_Games
IMSI spoofing device
of digital locks, such as laws protecting digital rights management (DRM) mechanisms. However, many countries do not have such laws, and some countries
Turbo_SIM
Programming language
traditional locking mechanisms, which eliminates the overhead and contention associated with locks. Native code – Pony is an ahead-of-time compiled language
Pony_(programming_language)
Battery electric full-size sedan
total of 508 TOPS of computing power, and a sensor suite consisting of one Hesai AT128 LiDAR, 3 mmWave radars, 11 cameras, and 12 ultrasonic sensors
Xiaomi_SU7
Town in Greater Manchester, England
manufacture of locks and hinges, and it also sits on the Lancashire Coalfield, and was a coal mining district. The name Ashton derives from Old English and means
Ashton-in-Makerfield
Facility used to house computer servers
2023). "Energy efficiency in cloud computing data centers: a survey on software technologies". Cluster Computing. 26 (3): 1845–1875. doi:10.1007/s10586-022-03713-0
Data_center
1983 video game
display. Amiga and MS-DOS versions were ported by Timothy Purves. In each overhead-view level, the player must gather keys to open locks which allow access
Time_Bandit
Transaction that reverses the effects of a prior, committed transaction
In transaction processing and distributed computing, a compensating transaction is a transaction that reverses the effects of a previously committed transaction
Compensating_transaction
and add, atomic increment, etc.) even in remote memory. Also there are two different synchronization methods: task control sync (barriers and locks)
SHMEM
Cross-platform document-oriented database
version 3.4.0, released in November 2016, and applied to earlier releases from v3.2.12 onward. Before version 2.2, locks were implemented on a per-server-process
MongoDB
Firmware for hardware initialization and OS runtime services
In computing, BIOS or the Basic Input/Output System is a type of firmware used to provide runtime services for operating systems and programs and to perform
BIOS
American entrepreneur and venture capitalist (born 1967)
Trade Republic, PsiQuantum (photonic quantum computing), and Rigetti Computing (superconducting quantum computing). Thiel also backed DeepMind, a UK start-up
Peter_Thiel
Group that provides security feedback
restricted areas. This is done to test and optimize physical security such as fences, cameras, alarms, locks, and employee behavior. As with technical red
Red_team
List of episodes of the BBC sitcom
British sitcom Only Fools and Horses was broadcast in the United Kingdom on BBC One between 8 September 1981 and 25 December 2003, and has aired 64 episodes
List of Only Fools and Horses episodes
List_of_Only_Fools_and_Horses_episodes
Topics referred to by the same term
a line of locks by Kwikset Titan Airways, an airline Titan Advisors, an American asset management firm TITAN Salvage, a marine salvage and wreck removal
Titan
Open-source password management software
the CHI Conference on Human Factors in Computing Systems. CHI EA '24. New York, NY, USA: Association for Computing Machinery. pp. 1–7. doi:10.1145/3613905
Bitwarden
Malicious software
of the 29th Annual ACM Symposium on Applied Computing. SAC '14. New York, NY, USA: Association for Computing Machinery. pp. 157–160. doi:10.1145/2554850
Malware
Video game sub-genre
"soft locks" – obstacles in the form of boss characters that are difficult but not impossible to defeat when the player-character is starting out, and become
Metroidvania
1983 science-fiction film directed by John Badham
controllers prove unwilling to turn the keys required to launch a missile strike. Such refusals convince Dr. John McKittrick and other NORAD systems engineers that
WarGames
Programming language for industrial controllers
unlock This circuit shows the two things that can trigger a car's power door locks. The remote receiver is always powered. The unlock solenoid gets power when
Ladder_logic
Implementation of SSL and TLS protocols
AWS cloud computing platform. It іs based on code from the OpenSSL and BoringSSL projects. QuicTLS is a collaborative fork between Akamai and Microsoft
OpenSSL
Control panel in front of a vehicle operator
data in one place is also called a dashboard, such as a dashboard in computing. When an open-fronted horse-drawn carriage such as a gig goes through
Dashboard
Overview article
users to export their EFS recovery certificates and private keys. Users are reminded to back up their EFS keys upon first use through a balloon notification
Security and safety features new to Windows Vista
Security_and_safety_features_new_to_Windows_Vista
Vehicle-based sensor device
side and rear. Warnings can be visual, audible, vibrating, or tactile. Vehicle blind spot (VBS) monitors may do more than monitor the sides and rear of
Blind_spot_monitor
NoSQL database service
Table can have the same Primary Key. Primary Keys in Dynamo DB can consist of either one or two attributes. When a Primary Key is made up of only one attribute
Amazon_DynamoDB
1982 adventure gamebook
village advise that the treasure is stored in a chest with two locks, and that the keys are guarded by various creatures within the dungeons. The player
The Warlock of Firetop Mountain
The_Warlock_of_Firetop_Mountain
Radiotherapy machine involved in six accidents
three allowed fixed positions a plunger locks it by interlocking. In this type of machine, electromechanical locks were traditionally used to ensure that
Therac-25
Proprietary file system developed by Microsoft
2000) Opportunistic locks have been enhanced in Windows 7 and Windows Server 2008 R2 with per-client oplock keys. Windows NT and its descendants keep
NTFS
Interference pattern
the CHI Conference on Human Factors in Computing Systems. CHI '24. New York, NY, USA: Association for Computing Machinery. pp. 1–10. doi:10.1145/3613904
Moiré_pattern
Automotive computer
a car, such as compact size, low power requirement, and some customized components. The computing hardware is typically based on standard PCs or mobile
Carputer
Family of database software by Microsoft
concurrency and optimistic concurrency. When pessimistic concurrency control is being used, SQL Server controls concurrent access by using locks. Locks can be
Microsoft_SQL_Server
Contractual transaction on a decentralized platform
(eds.). Intelligent Computing: Proceedings of the 2018 Computing Conference, Volume 2. Advances in Intelligent Systems and Computing. Vol. 857. pp. 1231–1243
Smart_contract
Roman jewelry, 3rd or 4th century AD
shape as a so-called can lock, although such Roman chain locks are usually much larger and made of iron with some bronze components. On the basis of
Golden Chain Lock of Petershagen
Golden_Chain_Lock_of_Petershagen
Collective impact of Edward Snowden leaks
analyst at the Information Technology and Innovation Foundation, predicted that the United States cloud computing industry could lose $35 billion by 2016
Snowden_effect
1992 film by Phil Alden Robinson
suspicious and takes Liz to his office, where Cosmo realizes her link to Martin. He locks down the facility and takes her hostage. Martin surrenders and hands
Sneakers_(1992_film)
Video game genre
situation, such as combination locks or other machinery that the player must learn to manipulate, though lateral thinking and conceptual reasoning puzzles
Adventure_game
Message-passing system for parallel computers
standard designed to function on parallel computing architectures. The MPI standard defines the syntax and semantics of library routines that are useful
Message_Passing_Interface
Overview of and topical guide to databases
a set of items. Data in computing (or data processing) are often represented by a combination of items organized in rows and multiple variables organized
Outline_of_databases
storage and telecommunications, and expanded computing capabilities. In 1980, IBM researcher John Cocke introduced Reduced Instruction Set Computing (RISC)
History_of_IBM
perform distributed locks as well. Redis is an open source, Redis Source Available License licensed, advanced key-value cache and store. Redis can be
Distributed_lock_manager
Cycle through all length-k sequences
m-by-n matrix directly adjacent to the sensor, and calculating its position on the de Bruijn torus. Computing the position of a particular unique tuple or
De_Bruijn_sequence
Removal of limitations from iOS devices
on iOS 15 and iPadOS 15 after over 2 years. The legal status of jailbreaking is affected by laws regarding circumvention of digital locks, such as laws
IOS_jailbreaking
University in Birmingham, England
the built environment, computing, education, engineering, English, healthcare, law, the performing arts, social sciences, and technology. A £125 million
Birmingham_City_University
1982 video game
the key hanging next to his father's cage, whereupon Mario flees while pushing the cage off the screen. In the fourth stage, DK Jr. must push six keys into
Donkey_Kong_Jr.
Open-source CPU instruction set architecture
synchronization primitives for multi-core computing, are considered to be necessary for general-purpose computing, and thus we have the shorthand, "G". A small
RISC-V
2008 thriller film directed by D. J. Caruso
it"). Belatedly, Jerry learns he has been brought to circumvent biometric locks placed by his twin that prevent ARIIA from activating Operation Guillotine
Eagle_Eye
Development of 2013 video game
instantly locks onto the enemy nearest to the crosshair. Associate technical director Phil Hooker found hard locking "too disorientating" and immersion-breaking
Development of Grand Theft Auto V
Development_of_Grand_Theft_Auto_V
2020s replacement for the US Postal Service's local delivery fleet
February 2023. Iaconangelo, David (February 24, 2022). "U.S. Postal Service Locks in Plans for More Gas Trucks". Scientific American. Retrieved 8 February
Oshkosh_NGDV
Type of distributed file system
Office of Science Advanced Scientific Computing Research program, NSF PACI and HECURA programs, and other government and private agencies. PVFS is now known
Parallel_Virtual_File_System
Programming language
many computing products and services named Go. In the 11 months since our release, there has been minimal confusion of the two languages." Free and open-source
Go_(programming_language)
Slovenian engineer and inventor
established the company Sielox Inc., which was to develop electronic locks and security devices based on one of his patents. In the same pursuit he also
France_Rode
Wireless standard for intelligent building networks
Z-Wave door locks that could be remotely exploited to unlock doors without the knowledge of the encryption keys, and due to the changed keys, subsequent
Z-Wave
Model of concurrent computation
capability-based systems, and packet switching. Its development was "motivated by the prospect of highly parallel computing machines consisting of dozens
Actor_model
Degree of resistance to, or protection from, harm
property used as a dwelling (commonly including doors, locks, alarm systems, lighting, fencing); and personal security practices (such as ensuring doors
Security
Part of the automobile controls
Product in Mobile Computing" on CeBit by magazine Byte. It offered turn-by-turn navigation via wireless internet connection, with both GPS and speed sensor
Automotive_navigation_system
Taiwanese network-attached storage company
as a department within the IEI Integration Corporation, an industrial computing service provider located in Taiwan. In 2004, QNAP Systems Inc. was spun
QNAP_Systems
Comprehensive outline of core abstractions in the field of computer science
operations efficiently and safely in applications ranging from operating systems to high-throughput data processing and network servers. The key challenge they
List of abstractions (computer science)
List_of_abstractions_(computer_science)
Software platform by Google for home automation
Google Assistant. These devices can unlock or open secure appliances such as locks, provided a PIN is supplied verbally. Initially, hubs were not required
Google_Home_(platform)
Digital wallet platform by Google
reloaded while it's on Wear OS. These home locks, vehicle models, hotel rooms, and more can be unlocked via NFC. Car keys in particular require select devices
Google_Wallet
LOCKS AND-KEYS-COMPUTING
LOCKS AND-KEYS-COMPUTING
Boy/Male
English
Lives by tbe stronghold. Surname referring to a lock or locksmith.
Surname or Lastname
English and Irish
English and Irish : variant spelling of Keyes.
Boy/Male
American, Australian, British, English
Lives by the Stronghold; Surname Referring to a Lock; Locksmith; Woods; Fortified Place
Surname or Lastname
English, German, and Jewish (Ashkenazic)
English, German, and Jewish (Ashkenazic) : metonymic occupational name for a maker of hoops and bands, etc., from Middle English band, bond, Middle High German, Middle Low German bant, German Band denoting something used for tying or binding: ‘hoop’, ‘metal band’, ‘fetter’, ‘shackle’.Old spelling of the Dutch cognates Bant, Bande, from Middle Dutch bant ‘band’.
Surname or Lastname
English and German
English and German : variant of Kay.Irish : reduced form of McKay.
Surname or Lastname
English
English : variant of Lock 2.Dutch : variant of van Locke (see Locke 2).
Female
Finnish
Estonian and Finnish pet form of Greek Hanna, ANU means "favor; grace."
Boy/Male
Christian, Gaelic, Indian
The One who Opens the Lock
Male
English
Unisex pet form of English Andrew and Andrea, ANDY means "man; warrior."
Surname or Lastname
English
English : metonymic occupational name for a locksmith, from Middle English, Old English loc ‘lock’, ‘fastening’.English : topographic name for someone who lived near an enclosure, a place that could be locked, Middle English loke, Old English loca (a derivative of loc as in 1). Middle English loke also came to be used to denote a barrier, in particular a barrier on a river which could be opened and closed at will, and, by extension, a bridge. The surname may thus also have been a metonymic occupational name for a lock-keeper.English, Dutch, and German : nickname for a person with fine hair, or curly hair, from Middle English loc, Middle High German lock(e) ‘lock (of hair)’, ‘curl’.Americanized spelling of German Loch.
Boy/Male
Indian, Punjabi, Sanskrit, Sikh
Speed; Flower in Bengali; Son in Telugu and Sanskrit
Surname or Lastname
English, Dutch, and German
English, Dutch, and German : variant of Lock.Dutch (van Locke) : habitational name from any of various places called Loock, from look ‘enclosure’.
Female
Serbian
(Bulgarian and Serbian Ðна): Bulgarian and Serbian form of Greek Hanna, ANA means "favor; grace."
Surname or Lastname
English
English : patronymic from Luck 1.Dutch (Luckx) : patronymic from Lucas.Possibly an altered spelling of German Luchs.
Surname or Lastname
English, Scottish, Danish, Norwegian, Swedish, German, and Jewish (Ashkenazic)
English, Scottish, Danish, Norwegian, Swedish, German, and Jewish (Ashkenazic) : topographic name for someone who lived on patch of sandy soil, from the vocabulary word sand. As a Swedish or Jewish name it was often purely ornamental.Dutch and Belgian : reduced form of Van den Sand(e), Van den Zande, a habitational name from places such as Zande in West Flanders or various minor places named with zand ‘sand’.English and Scottish : from a short form of Alexander.French : from a Germanic personal name, Sando.
Male
Greek
(Κήυξ) Greek name, possibly KEYX means "kingfisher." In mythology, this is the name of a king of Thessaly, the son of Eosphoros.
Female
Norwegian
Danish and Norwegian form of Greek Hanna, ANE means "favor; grace."
Surname or Lastname
English and German
English and German : topographic name from Old English land, Middle High German lant, ‘land’, ‘territory’. This had more specialized senses in the Middle Ages, being used to denote the countryside as opposed to a town or an estate.English : topographic name for someone who lived in a forest glade, Middle English, Old French la(u)nde, or a habitational name from Launde in Leicestershire or Laund in West Yorkshire, which are named with this word.Norwegian : habitational name from any of three farmsteads so named, from Old Norse land ‘land’, ‘territory’ (see 1 above).
Girl/Female
Australian, Dutch
Loving and Musical
Surname or Lastname
English and German
English and German : nickname for someone with a deformed hand or who had lost one hand, from Middle English hand, Middle High German hant, found in such appellations as Liebhard mit der Hand (Augsburg 1383).Jewish (Ashkenazic) : nickname from German Hand ‘hand’ (see 1).Irish : Anglicized form of Gaelic Ó Flaithimh (see Guthrie), resulting from an erroneous association of the Gaelic name with the Gaelic word lámh ‘hand’. It is used as an English equivalent for several other names of Gaelic origin too, e.g. Claffey, Glavin, and McClave.Dutch : from a variant of hont ‘dog’, ‘hound’, either a derogatory nickname, or a habitational name for someone living at a house distinguished by the sign of a dog.
LOCKS AND-KEYS-COMPUTING
LOCKS AND-KEYS-COMPUTING
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Tamil, Telugu
Name of Goddess; Blissful
Girl/Female
Tamil
A poem
Girl/Female
Arabic, Muslim
Beautiful Butterfly
Surname or Lastname
English
English : occupational name for someone who looked after animals, Middle English bester, from beste ‘beast’ (see Best).German : habitational name for someone from a place called Beste.Slovenian (Gorenjska; also Bešter) : probably a derivative of Vester 3, a reduced form of the personal name Silvester. Replacement of initial V- with B- is quite common in Slovenian surnames.
Boy/Male
Tamil
Girl/Female
Hindu
Lustrous or bright or radiant or intelligent, Brave, Powerful
Girl/Female
Gujarati, Hindu, Indian
Wisdom; Best Friend
Boy/Male
Tamil
Little red talker
Girl/Female
Indian
Pine tree, Denotes long neck
Girl/Female
Latin
Gray; gray-haired.
LOCKS AND-KEYS-COMPUTING
LOCKS AND-KEYS-COMPUTING
LOCKS AND-KEYS-COMPUTING
LOCKS AND-KEYS-COMPUTING
LOCKS AND-KEYS-COMPUTING
n.
Materials for locks in a canal, or the works forming a lock or locks.
v. t.
To link together; to clasp closely; as, to lock arms.
n.
An instrument which is turned like a key in fastening or adjusting any mechanism; as, a watch key; a bed key, etc.
n.
That part of an instrument or machine which serves as the means of operating it; as, a telegraph key; the keys of a pianoforte, or of a typewriter.
v. t.
To prevent ingress or access to, or exit from, by fastening the lock or locks of; -- often with up; as, to lock or lock up, a house, jail, room, trunk. etc.
n.
A position or condition which affords entrance, control, pr possession, etc.; as, the key of a line of defense; the key of a country; the key of a political situation. Hence, that which serves to unlock, open, discover, or solve something unknown or difficult; as, the key to a riddle; the key to a problem.
a.
Having locks or tufts.
v. t.
To fasten or secure firmly; to fasten or tighten with keys or wedges.
v. t.
To fasten with a lock, or as with a lock; to make fast; to prevent free movement of; as, to lock a door, a carriage wheel, a river, etc.
v. i.
To become fast, as by means of a lock or by interlacing; as, the door locks close.
n.
A key for opening more locks than one; a master key.
a.
Furnished with keys; as, a keyed instrument; also, set to a key, as a tune.
v. t.
To furnish with locks; also, to raise or lower (a boat) in a lock.
n.
An indehiscent, one-seeded fruit furnished with a wing, as the fruit of the ash and maple; a samara; -- called also key fruit.
v.
The part of a key which enters the lock and acts upon the bolt and tumblers.
n.
An inclosure in a canal with gates at each end, used in raising or lowering boats as they pass from one level to another; -- called also lift lock.
n.
A place from which egress is prevented, as by a lock.
n.
A family of tones whose regular members are called diatonic tones, and named key tone (or tonic) or one (or eight), mediant or three, dominant or five, subdominant or four, submediant or six, supertonic or two, and subtonic or seven. Chromatic tones are temporary members of a key, under such names as " sharp four," "flat seven," etc. Scales and tunes of every variety are made from the tones of a key.
v. t.
To fasten in or out, or to make secure by means of, or as with, locks; to confine, or to shut in or out -- often with up; as, to lock one's self in a room; to lock up the prisoners; to lock up one's silver; to lock intruders out of the house; to lock money into a vault; to lock a child in one's arms; to lock a secret in one's breast.
n.
An instrument by means of which the bolt of a lock is shot or drawn; usually, a removable metal instrument fitted to the mechanism of a particular lock and operated by turning in its place.