warren UK /ˈwɒɹən/US /ˈwɔɹən/ noun6 •an area of ground where rabbits or other small animals have made many joined homes under the surfaceThe largest warren in group 9 had 10 entrances in use and 11 not in use. — 1986 •(figurative) A mazelike place of passages and/or rooms in which it's easy to lose oneself; especially one that may be overcrowded.We piled into Manchester's car, leaving mine at the gallery, and crossed town, striking off the main road and into a warren of dirt roads and adobe. — 1984 •A structure where rabbits are kept as pets or for food, etc; the rabbits living in such a structure. •A place legally authorized for the keeping, breeding and hunting of beasts of warren, especially rabbits.This warren is the flat at the summit of an exceedingly high mountain, and consists of, I think, the very worst land I ever saw in my life. — 1888 •(historical) The right to maintain and hunt an area of small beasts, similar to a free warren, but with certain limitations, such as restricting the right to hunt on parts of the land held by freeholders.The defendant has pleaded a warren in gross: he does not make it appendant or appurtenant. He shews merely that Charles I. granted a free warren, as he might do. — 1910 •(no longer used) The class of small game such as hare, pheasants, stoats, etc., as opposed to beasts of chase such as deer, bear, and foxes.Grouse are not birds of warren ( 2 ); and trespass on a free warren will not lie for shooting them . — 1844 formswarrens