noun, plural keys.
- (in a keyboard instrument) one of the levers that when depressed by the performer sets in motion the playing mechanism.
- (on a woodwind instrument) a metal lever that opens and closes a vent.
- the relationship perceived between all tones in a given unit of music and a single tone or a keynote; tonality.
- the principal tonality of a composition: a symphony in the key of C minor.
- the keynote or tonic of a scale.
- a device for opening and closing electrical contacts.
- a hand-operated switching device ordinarily formed of concealed spring contacts with an exposed handle or push button, capable of switching one or more parts of a circuit.
verb (used with object), keyed, key·ing.
- to paint (a picture) in a given key.
- to adjust the colors in (a painting) to a particular hue: He keyed the painting to brown.
verb (used without object), keyed, key·ing.
- Football. to watch the position and movements of an opponent in order to anticipate a play: The defensive backs keyed on the star receiver.
- Also key in on. to single out as of prime importance or interest; be intent on or obsessed with: a company that is keyed in on growth.
- to bring to a particular degree of intensity of feeling, excitement, energy, nervousness, agitation, etc.: keyed up over the impending test.
- to raise (a piece of masonry) by the insertion of a wedge or wedges.
- to raise (the haunches of an arch) by the insertion of a voussoir.
Words nearby key
Idioms for key
Origin of key1
Definition for key (2 of 4)
noun, plural keys.
Origin of key2
Definition for key (3 of 4)
noun, plural keys. Slang.
Origin of key3
Definition for key (4 of 4)
Examples from the Web for key
Getting men to do their share of care and domestic work is a key overlooked strategy in reducing poverty.
By contrast, Solomon can tell us a great deal about what really changed the country—because at key moments, he was there.The Real Story Behind the Fight for Marriage Equality|E.J. Graff|December 30, 2014|DAILY BEAST
The second lesson is that no one writing before the twentieth century holds a key to our problems.
The opposition responded with a month-long Occupy Abay (like Occupy Wall St) campaign, in which Udaltsov was one of key figures.Behind Bars for the Holidays: 11 Political Prisoners We Want to See Free In 2015|Movements.Org|December 25, 2014|DAILY BEAST
Now of course this song can be performed in any key, but it sounds best in Eminor and in my experience is often sung there.
She thrust the volume into the desk, turned the key, and burst out crying with shame and vexation.The Adventures of Tom Sawyer, Complete|Mark Twain (Samuel Clemens)
Still, it is always interesting to guess at a mystery before you find the key.The Dash for Khartoum|George Alfred Henty
It was a key of peculiar construction, evidently made of individual pattern.Boy Scouts in the Philippines|G. Harvey Ralphson
When we left the room he locked the door carefully, and hung up the key beside it.Through Finland in Carts|Ethel Brilliana Alec-Tweedie
But when you have had what is called the key of the street for years enough, you hardly know where to look for the key of a room.Harding's luck|E. [Edith] Nesbit
British Dictionary definitions for key (1 of 3)
- Also called: tonality any of the 24 major and minor diatonic scales considered as a corpus of notes upon which a piece of music draws for its tonal framework
- the main tonal centre in an extended compositiona symphony in the key of F major
- the tonic of a major or minor scale
- See tuning key
- a hand-operated device for opening or closing a circuit or for switching circuits
- a hand-operated switch that is pressed to transmit coded signals, esp Morse code
verb (mainly tr)
Derived forms of keykeyless, adjective
Word Origin for key
British Dictionary definitions for key (2 of 3)
British Dictionary definitions for key (3 of 3)
Science definitions for key
Culture definitions for key
The main or central note of a piece of music (or part of a piece of music). Each key has its own scale, beginning and ending on the note that defines the octave of the next scale. The key of C-major uses a scale that starts on C and uses only the white keys of the piano. In a piece composed in the key of C, the music is likely to end on the note C, and certain combinations of notes based on C will predominate.
Idioms and Phrases with key
In addition to the idiom beginning with key
- key up
- in key
- under lock and key