(computing, etc.) A set of keys used to operate a typewriter, computer etc.

(intransitive) To type on a computer keyboard.

A thin colorless to straw-colored petroleum-based fuel heavier than gasoline/petrol or naptha but lighter than diesel, used primarily as jet fuel but also for heating and lighting in some remote or impoverished areas.

simple past tense and past participle of keep

To continue in (a course or mode of action); not to intermit or fall from; to uphold or maintain. / To remain faithful to a given promise or word. / To maintain possession of.

(historical) The main tower of a castle or fortress, located within the castle walls. / The food or money required to keep someone alive and healthy; one's support, maintenance.

Any of various small falcons of the genus Falco that hover while hunting. / The common kestrel, Falco tinnunculus.

An object designed to open and close a lock. / An object designed to fit between two other objects (such as a shaft and a wheel) in a mechanism and maintain their relative orientation.

Indispensable, supremely important. / Important, salient.

To fit (a lock) with a key. / To fit (pieces of a mechanical assembly) with a key to maintain the orientation between them. / To mark or indicate with a symbol indicating membership in a class.