A term in English law for a place in which birds, fishes, or wild beasts are kept. A franchise or privilege, either by prescription or grant from the king, to keep beasts and fowls of warren, which are hares, coneys, partridges, pheasants, etc. : Also any place to which such privilege extends. Mozley & Whitley. Free warren. A franchise for the preserving and custody of beasts and fowls of warren. 2 BL Comm. 39, 417; Co. Litt. 233. This franchise gave the grantee sole right of killing, so far as his warren extended, on condition of excluding other persons. 2 Bl. Comm. 39.