key is the dictionary form of key's Definition of key
key has definitions from the fields of computer science,music,psychology,geography,law,verse,work,writing,architecture,botany
1
[ noun ] metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
2
[ adjective ] serving as an essential component

Examples

"a cardinal rule" "the central cause of the problem" "an example that was fundamental to the argument" "computers are fundamental to modern industrial structure"

3
[ noun ] (psychology) something crucial for explaining

Examples

"the key to development is economic integration"

4
[ noun ] (music) pitch of the voice

Examples

"he spoke in a low key"

5
[ verb ] as in botany or biology, for example
6
[ noun ] (music) any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music

Synonyms

tonality

7
[ adjective ] effective; producing a desired effect

Synonyms

operative

Examples

"the operative word"

8
[ noun ] (architecture) the central building block at the top of an arch or vault

Synonyms

headstone keystone

9
[ noun ] one thousand grams; the basic unit of mass adopted under the System International d'Unites

Synonyms

kg kilo kilogram

Examples

"a kilogram is approximately 2.2 pounds" "they were carrying two keys of heroin"

10
[ noun ] a list of answers to a test

Examples

"some students had stolen the key to the final exam"

11
[ verb ] (music) regulate the musical pitch of
12
[ verb ] (music) harmonize with or adjust to

Examples

"key one's actions to the voters' prevailing attitude"

13
[ noun ] (geography) a coral reef off the southern coast of Florida

Synonyms

Florida_keys cay

14
[ noun ] Last name, frequency rank in the U.S. is 796
15
[ verb ] vandalize a car by scratching the sides with a key

Examples

"His new Mercedes was keyed last night in the parking lot"

16
[ noun ] (law,verse,work,writing) 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)
17
[ noun ] a list of words or phrases that explain symbols or abbreviations
18
[ noun ] a generic term for any device whose possession entitles the holder to a means of access

Examples

"a safe-deposit box usually requires two keys to open it"

19
[ verb ] provide with a key

Examples

"We were keyed after the locks were changed in the building"

20
[ noun ] (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

Synonyms

paint

Examples

"he hit a jump shot from the top of the key" "he dominates play in the paint"

21
[ noun ] (botany) a winged often one-seed indehiscent fruit as of the ash or elm or maple

Synonyms

key_fruit samara

22
[ noun ] a kilogram of a narcotic drug

Examples

"they were carrying two keys of heroin"

23
[ noun ] mechanical device used to wind another device that is driven by a spring (as a clock)

Synonyms

winder

24
[ noun ] (computer science) a lever that actuates a mechanism when depressed
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