to lap or lay in plaits or folds; to lay one part over another part of; to double; as, to fold cloth; to fold a letter.-to double or lay together, as the arms or the hands; as, he folds his arms in despair.-to inclose within folds or plaitings; to envelop; to infold; to clasp; to embrace.-to cover or wrap up; to conceal.-to become folded, plaited, or doubled; to close over another of the same kind; to double together; as, the leaves of the door fold.-a doubling,esp. of any flexible substance; a part laid over on another part; a plait; a plication.-times or repetitions; -- used with numerals, chiefly in composition, to denote multiplication or increase in a geometrical ratio, the doubling, tripling, etc., of anything; as, fourfold, four times, increased in a quadruple ratio, multiplied by four.-that which is folded together, or which infolds or envelops; embrace.-an inclosure for sheep; a sheep pen.-a flock of sheep; figuratively, the church or a church; as, christ's fold.-a boundary; a limit.-to confine in a fold, as sheep.-to confine sheep in a fold.