warren

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. An area where rabbits live in burrows.
2. n. A colony of rabbits. See Synonyms at flock¹.
3. n. An enclosure for small game animals.
4. n. An overcrowded living area.
5. n. A mazelike place where one may easily become lost: a warren of narrow, dark alleys and side streets.

Century Dictionary and Cyclopedia

1. n. A piece of ground appropriated to the breeding and preservation of rabbits or other game: a place where rabbits abound.
2. n. In English law, a franchise or place privileged by prescription or grant from the crown, for keeping beasts and fowls of warren, which are hares, rabbits, partridges, and pheasants, though some add quails, woodcocks, and waterfowl. The warren is the next franchise in degree to the park; and a forest, which is the highest in dignity, comprehends a chase, a park, and a freewarren.
3. n. A preserve for fish in a river.

Wiktionary

1. n. The system of burrows where rabbits live.
2. n. figuratively A mazelike place of dark alleys etc in which it's easy to lose oneself; especially one that may be overcrowded.

GNU Webster's 1913

1. n. A place privileged, by prescription or grant the king, for keeping certain animals (as hares, conies, partridges, pheasants, etc.) called beasts and fowls of warren.
2. n. A privilege which one has in his lands, by royal grant or prescription, of hunting and taking wild beasts and birds of warren, to the exclusion of any other person not entering by his permission.
3. n. A piece of ground for the breeding of rabbits.
4. n. A place for keeping flash, in a river.

WordNet 3.0

1. n. United States writer and poet (1905-1989)
2. n. a colony of rabbits
3. n. an overcrowded residential area
4. n. a series of connected underground tunnels occupied by rabbits
5. n. United States jurist who served as chief justice of the United States Supreme Court (1891-1974)