Fold \Fold\, n. [OE. fald, fold, AS. fald, falod.] 1. An inclosure for sheep; a sheep pen. Leaps o'er the fence with ease into the fold. --Milton. 2. A flock of sheep; figuratively, the Church or a church; as, Christ's fold. There shall be one fold and one shepherd. --John x. 16. The very whitest lamb in all my fold. --Tennyson. 3. A boundary; a limit. [Obs.] --Creech. {Fold yard}, an inclosure for sheep or cattle.