noun.
A low offshore island or reef, especially in the Gulf of Mexico; a cay.
noun.
A kilogram of marijuana, cocaine, or heroin.
noun.
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noun.
A notched and grooved, usually metal implement that is turned to open or close a lock.
noun.
A similar implement or an electronic device used for opening, winding, or starting something.
noun.
A device, such as a wedge or pin, inserted to lock together mechanical or structural parts.
noun.
A keycard.
noun.
A determining factor in accomplishing or achieving something.
noun.
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noun.
Something that provides access to or understanding of something else.
noun.
A set of answers to a test.
noun.
A table, gloss, or cipher containing correspondences, as for decoding or interpreting something.
noun.
A number used by a cryptographic algorithm to encrypt or decrypt data.
noun.
The keystone in the crown of an arch.
noun.
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noun.
A button or lever that is depressed to operate a machine.
noun.
A button that is depressed to cause a corresponding character or function to be typed or executed by a typewriter or to be accepted as input by a computer.
noun.
A button or lever that is depressed with the finger to produce or modulate the sound of an instrument, such as a clarinet or piano.
noun.
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noun.
A tonal system consisting of seven tones in fixed relationship to a tonic, having a characteristic key signature and being the structural foundation of the bulk of Western music; tonality.
noun.
The principal tonality of a work.
noun.
The pitch of a voice or other sound.
noun.
A characteristic tone or level of intensity, as of a speech or sales campaign. Often used in combination.
noun.
A samara.
noun.
An outline of the distinguishing characteristics of a group of organisms, used as a guide in taxonomic identification.
noun.
An area at each end of the court between the baseline and the foul line and including the jump-ball circle at the foul line.
noun.
The act of replacing portions of a video or photograph containing a preselected color with material from a separate image, as by chroma key.
adjective.
Of crucial importance; significant.
intransitive verb.
To lock with a key.
intransitive verb.
To be the determining or crucial factor in.
intransitive verb.
To furnish (an arch) with a keystone.
intransitive verb.
To regulate the pitch of.
intransitive verb.
To bring into harmony; adjust or adapt.
intransitive verb.
To cause to pay attention to.
intransitive verb.
To supply with a key of correspondences or with corresponding references.
intransitive verb.
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intransitive verb.
To operate (a device), as for typesetting, by means of a keyboard.
intransitive verb.
To enter (data) into a computer by means of a keyboard.
intransitive verb.
To identify (a biological specimen).
intransitive verb.
To vandalize or mar by scratching with a key.
intransitive verb.
To produce, replace, or include by chroma key.
intransitive verb.
To pay close attention; focus.
intransitive verb.
To watch or cover an opposing player closely in an effort to limit the player's effectiveness. Used with on:
intransitive verb.
To replace portions of a video or photograph containing a preselected color with material from a separate image, as by chroma key.
phrasal verb.
To make intense, excited, or nervous.
idiom.
(in key) In consonance with other factors.
idiom.
(out of key) Not in consonance with other factors.