[war.ren] n [ME warenne, fr. ONF, prob. of Gmc origin; akin to OHG werien to defend, protect--more at weir] (15c) 1 chiefly Brit a: a place legally authorized for keeping small game (as hare or pheasant) b: the privilege of hunting game in such a warren
2. a (1): an area (as of uncultivated ground) where rabbits breed (2): a structure where rabbits are kept or bred b: the rabbits of a warren 3 a: a crowded tenement or district b: a maze of passageways or cubbies