Definition of key tochiefly US
- I try to key my lectures to my audience.
- The educational program is keyed to the needs of working women.
- The amount of money they receive is keyed to the rate of inflation.
: a usually metal instrument by which the bolt of a lock is turned
: any of various devices having the form or function of such a key
: a means of gaining or preventing entrance, possession, or control
: extremely or crucially important
: to lock or secure with or as if with a key : fasten: such as
: to secure (something, as a pulley on a shaft) by a key
: to finish off (an arch) by inserting a keystone
: a low island or reef
: a kilogram especially of marijuana or heroin
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