Used other than figuratively or idiomatically: Without light; somewhere that is dark. / (idiomatic) Without information.

(chiefly US, idiomatic, euphemistic) Up or in the anus.

(slang) To play the piano.

(idiomatic) To infer a meaning that is not stated explicitly.

(idiomatic) To do work unnecessarily when it has already been done satisfactorily by others; to attempt to devise a solution to a problem when a solution already exists.

(idiomatic, US) To chat idly or generally waste time talking.

(originally nautical, informal) To learn the basics or master introductory knowledge. / (informal) To learn some skill requiring specialist knowledge.

A voting system where the candidate with the most votes (a plurality) wins, without any form of preference transfer.

(informal) Legitimate; honest; upright.

(bingo) ninety