Entry 3 senses · 3 variants Webster, 1913 Boxer /(bŏks"ẽr)/ · Box·er · IPA /ˈbɑksɚ/ n. n. n. 01 n. One who packs boxes. 1. One who packs boxes. 02 n. One who boxes; a pugilist. 1. One who boxes; a pugilist. 03 n. A breed of dog. 1. A breed of dog.