| Noun | 1. | key - metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotateddevice - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water" ignition key - a key that operates the ignition switch of an automotive engine latchkey - key for raising or drawing back a latch or opening an outside door shank, stem - cylinder forming a long narrow part of something | |
| 2. | key - something crucial for explaining; "the key to development is economic integration"explanation - thought that makes something comprehensible | |
| 3. | key - pitch of the voice; "he spoke in a low key"pitch - the property of sound that varies with variation in the frequency of vibration | |
| 4. | key - any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music | |
| 5. | key - a kilogram of a narcotic drug; "they were carrying two keys of heroin"kg, kilo, kilogram - one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites; "a kilogram is approximately 2.2 pounds" | |
| 6. | key - a winged often one-seed indehiscent fruit as of the ash or elm or mapleachene - small dry indehiscent fruit with the seed distinct from the fruit wall | |
| 7. | Key - United States lawyer and poet who wrote a poem after witnessing the British attack on Baltimore during the War of 1812; the poem was later set to music and entitled `The Star-Spangled Banner' (1779-1843)attorney, lawyer - a professional person authorized to practice law; conducts lawsuits or gives legal advice poet - a writer of poems (the term is usually reserved for writers of good poetry) | |
| 8. | key - a coral reef off the southern coast of Floridacoral reef - a reef consisting of coral consolidated into limestone | |
| 9. | key - (basketball) a space (including the foul line) in front of the basket at each end of a basketball court; usually painted a different color from the rest of the court; "he hit a jump shot from the top of the key"; "he dominates play in the paint"basketball, basketball game, hoops - a game played on a court by two opposing teams of 5 players; points are scored by throwing the basketball through an elevated horizontal hoop foul line - a line from which basketball players take penalty shots space - an area reserved for some particular purpose; "the laboratory's floor space" | |
| 10. | key - a list of answers to a test; "some students had stolen the key to the final exam"list, listing - a database containing an ordered array of items (names or topics) | |
| 11. | key - a list of words or phrases that explain symbols or abbreviationslist, listing - a database containing an ordered array of items (names or topics) key word - a word that is used as a pattern to decode an encrypted message | |
| 12. | key - a generic term for any device whose possession entitles the holder to a means of access; "a safe-deposit box usually requires two keys to open it"positive identification - evidence proving that you are who you say you are; evidence establishing that you are among the group of people already known to the system; recognition by the system leads to acceptance; "a system for positive identification can prevent the use of a single identity by several people" | |
| 13. | key - mechanical device used to wind another device that is driven by a spring (as a clock)mechanical device - mechanism consisting of a device that works on mechanical principles watch key - winder consisting of a key with a square hole; used for winding some watches | |
| 14. | key - the central building block at the top of an arch or vaultarch - (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it | |
| 15. | key - a lever that actuates a mechanism when depressedaction mechanism, action - the operating part that transmits power to a mechanism; "the piano had a very stiff action" command key, control key - (computer science) the key on a computer keyboard that is used (in combination with some other key) to type control characters keyboard - device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like lever - a rigid bar pivoted about a fulcrum return key, return - the key on electric typewriters or computer keyboards that causes a carriage return and a line feed space bar - the bar-shaped typewriter key that introduces spaces when used tab key, tab - the key on an electric typewriter that causes a tabulation telegraph key - key consisting of a lever that sends a telegraph signal when it is depressed and the circuit is closed | |
| Verb | 1. | key - identify as in botany or biology, for example | |
| 2. | key - provide with a key; "We were keyed after the locks were changed in the building" | |
| 3. | key - vandalize a car by scratching the sides with a key; "His new Mercedes was keyed last night in the parking lot"vandalise, vandalize - destroy wantonly, as through acts of vandalism; "vandalize the park" | |
| 4. | key - regulate the musical pitch ofmusic - (music) the sounds produced by singers or musical instruments (or reproductions of such sounds) | |
| 5. | key - harmonize with or adjust to; "key one's actions to the voters' prevailing attitude" | |
| Adj. | 1. | key - serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"important, of import - of great significance or value; "important people"; "the important questions of the day" | |
| 2. | key - effective; producing a desired effect; "the operative word"significant, important - important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant" | |