Source : Webster's Revised Unabridged Dictionary (1913)

Bagnio \Bagn"io\, n. [It. bagno, fr. L. balneum. Cf. {Bain}.]
   1. A house for bathing, sweating, etc.; -- also, in Turkey, a
      prison for slaves. [Obs.]

   2. A brothel; a stew; a house of prostitution.

Source : WordNet®

bagnio
     n 1: a building where prostitutes are available [syn: {whorehouse},
           {brothel}, {bordello}, {house of prostitution}, {house
          of ill repute}, {bawdyhouse}, {cathouse}, {sporting
          house}]
     2: a building containing public baths [syn: {bathhouse}]