·noun The chief officer of a commandery.
II. Commander ·noun A heavy beetle or wooden mallet, used in paving, in sail lofts, ·etc.
III. Commander ·noun An officer who ranks next below a captain, — ranking with a lieutenant colonel in the army.
IV. Commander ·noun A chief; one who has supreme authority; a leader; the chief officer of an army, or of any division of it.