The Collaborative International Dictionary of English v.0.48:

Bawdyhouse \Baw"dy*house`\, n.
   A house of prostitution; a house of ill fame; a brothel.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bawdyhouse
    n 1: a building where prostitutes are available [syn:
         whorehouse, brothel, bordello, bagnio, house of
         prostitution, house of ill repute, bawdyhouse,
         cathouse, sporting house]

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "bawdyhouse":
   bagnio, bordello, brothel, cathouse, crib, den, den of vice,
   disorderly house, dive, house of assignation, house of joy,
   house of prostitution, joint, panel den, panel house,
   red-light district, sink of iniquity, sporting house, stew, stews,
   tenderloin, whorehouse



Bouvier's Law Dictionary, Revised 6th Ed (1856):

BAWDY-HOUSE, crim. law. A house of ill-fame, (q. v.) kept for the resort and
unlawful commerce of lewd people of both sexes.
     2. Such a house is a common nuisance, as it endangers the public peace
by drawing together dissolute and debauched persons; and tends to corrupt
both sexes by an open profession of lewdness. 1 Russ. on Cr.; 299: Bac. Ab.
Nuisances, A; Hawk. B. 1, c. 74, Sec. 1-5.
     3. The keeper of such a house may be indicted for the nuisance; and a
married woman, because such houses are generally kept by the female sex, may
be indicted with her husband for keeping such a house. 1 Salk. 383; vide
Dane's Ab. Index, h. t. One who assists in establishing a bawdyhouse is
guilty of a misdemeanor. 2 B. Monroe, 417.