Available Definitions:
1) n. - A keeper; a guardian; a watchman.
2) n. - An officer who keeps or guards; a keeper; as, the warden of a prison.
3) n. - A head official; as, the warden of a college; specifically (Eccl.), a churchwarden.
4) n. - A large, hard pear, chiefly used for baking and roasting.