(biology) A written tool for identification of plants and animals. It is written as a sequence of paired questions, the choice of which determines the next pair of questions until a name or identification is reached.

(music) (of a string instrument or a manner of playing one) Performed with loosened strings, such that all of the strings play in the same key (most often G major).

(US) Indicates that the speaker has lost his or her keys.

(UK) Indicates that the speaker has lost his or her keys.

An electronic device that serves the purpose of a car key by locking and unlocking a vehicle remotely.

(management) A financial or non-financial metric used to help an organization define and measure progress towards its goals.

(US, UK, idiomatic) imprisoned with little or no chance of escape; locked up. / (US, UK, idiomatic) safely guarded; locked away.

A method used to protect network traffic in WPA (Wi-Fi Protected Access) networks by requiring that all connected devices use the same manually entered password.

plural of key set identifier

A form of frequency modulation in which digital information is transmitted through discrete changes of the frequency of a carrier wave.