The Collaborative International Dictionary of English v.0.48:

Bunny \Bun"ny\, n. (Mining)
   A great collection of ore without any vein coming into it or
   going out from it.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bunny \Bun"ny\, n.
   A pet name for a rabbit or a squirrel.
   [1913 Webster] Bunodonta

WordNet (r) 3.0 (2006):

bunny
    n 1: a young waitress in a nightclub whose costume includes the
         tail and ears of a rabbit [syn: bunny, bunny girl]
    2: (usually informal) especially a young rabbit [syn: bunny,
       bunny rabbit]

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "bunny":
   Belgian hare, Miss America, bathing beauty, beau ideal, beaut,
   beauty, beauty contest winner, beauty queen, belle, buck, charmer,
   cottontail, cover girl, dazzler, doe, dream, enchantress,
   great beauty, hare, jackrabbit, knockout, lady fair, lapin,
   leporide, leveret, looker, model, paragon, peach, pinup,
   pinup girl, pussycat, rabbit, raving beauty, reigning beauty,
   sex kitten, slick chick, stunner