The Collaborative International Dictionary of English v.0.48:

Puss \Puss\ (p[.u]s), n. [Cf. D. poes, Ir. & Gael. pus.]
   1. A cat; -- a fondling appellation.
      [1913 Webster]

   2. A hare; -- so called by sportsmen.
      [1913 Webster]

   Puss in the corner, a game in which all the players but one
      occupy corners of a room, or certain goals in the open
      air, and exchange places, the one without a corner
      endeavoring to get a corner while it is vacant, leaving
      some other without one.

   Puss moth (Zool.), any one of several species of stout
      bombycid moths belonging to Cerura, Harpyia, and
      allied genera, esp. Harpyia vinuli, of Europe. The
      larv[ae] are humpbacked, and have two caudal appendages.
      [1913 Webster]

WordNet (r) 3.0 (2006):

puss
    n 1: obscene terms for female genitals [syn: cunt, puss,
         pussy, slit, snatch, twat]
    2: informal terms referring to a domestic cat [syn: kitty,
       kitty-cat, puss, pussy, pussycat]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "puss":
   Cheshire cat, Chinchilla cat, Maltese cat, alley cat, blue cat,
   bud, calico cat, cat, chick, chickabiddy, child, countenance, dial,
   face, facies, favor, features, feline, gib, gib-cat, grimalkin,
   house cat, juvenile, kid, kisser, kit, kitling, kitten, kitty,
   kitty-cat, lineaments, map, moppet, mouser, mug, mush, muzzle,
   nipper, pan, phiz, physiognomy, pussy, pussycat, silver cat, tabby,
   tabby cat, tiger cat, tom, tomcat, tortoise-shell cat, visage,
   youngster