Entry 2 senses · 2 variants Webster, 1913 Bunny /bŭn'-ē/ · Bun·ny · IPA /ˈbʌni/ n. n. 01 n. A great collection of ore without any vein coming into it or going out from it. 1. A great collection of ore without any vein coming into it or going out from it.(Mining) 02 n. A pet name for a rabbit or a squirrel. 1. A pet name for a rabbit or a squirrel.