plural of home key

plural of start key

plural of chuck key

plural of electronic car key

plural of programmed function key

plural of pre-shared key

(music) An indication of the key of a composition, giving the number of sharps or flats in the corresponding scale.

(computing) To take something as a controlling input datum. / To turn off something (e.g. a car) using a key.

(cryptography) An exchange of peers' keys at the initialization phase of connection.

(music) A musical key based upon a major scale. / (idiomatic) A mood of cheerfulness or happiness.