(computing, artificial intelligence) A computer language designed for communicating knowledge between independently running computer programs.

(slang, vulgar, idiomatic) The anus.

(historical) The doctrines, principles, or practices of the Know-Nothings.

(historical) A member of a secret antiforeigner political organization in the nineteenth-century United States.

Alternative form of know one's own mind

(idiomatic) To clearly understand one's own feelings, intentions, preferences, etc; to know precisely what one wants; to be decisive or determined.

past participle of know someone in the biblical sense

present participle of know someone in the biblical sense

(idiomatic) To have sex with someone.

A type of bend knot used to join the ends of tubular webbing, commonly employed by mountaineers to create a sling seat.