Key Definition
key
adjective
- 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"
noun
- metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
- something crucial for explaining; "the key to development is economic integration"
- pitch of the voice; "he spoke in a low key"
- any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
- a kilogram of a narcotic drug; "they were carrying two keys of heroin"
- a winged often one-seed indehiscent fruit as of the ash or elm or maple
- 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)
- a coral reef off the southern coast of Florida
- (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"
- a list of answers to a test; "some students had stolen the key to the final exam"
- a list of words or phrases that explain symbols or abbreviations
- 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"
- mechanical device used to wind another device that is driven by a spring (as a clock)
- the central building block at the top of an arch or vault
- a lever (as in a keyboard) that actuates a mechanism when depressed
verb
- identify as in botany or biology, for example
- provide with a key; "We were keyed after the locks were changed in the building"
- vandalize a car by scratching the sides with a key; "His new Mercedes was keyed last night in the parking lot"
- regulate the musical pitch of
- harmonize with or adjust to; "key one's actions to the voters' prevailing attitude"
"Key" in song lyrics
See how key is used in real songs:
-
"I'm off the chain, I'm off the key"
2 Live Crew — 2 Live is Here -
"Now can't hang, got a space at the back of the club, low key"
2nd II None f/ AMG, DJ Quik — Up in Da Club -
"By the house and by the key"
Above the Law f/ Kokane, Tone Loc — Who Ryde?
Words that rhyme with key
Usage tips for "key"
Understanding the precise definition of a word helps you use it with confidence. When using "key" in your writing, consider whether you need the word itself or one of its synonyms — subtle differences in meaning can change the tone of a sentence. If you're writing poetry or song lyrics, check the rhymes for key to find words that pair well.