Definitions
1.nounA participant (fighter) in a boxing match."You can tell she's a boxer by looking at her nose."
2.nounA breed of stocky, medium-sized, short-haired dog with a square-jawed muzzle.
3.nounA type of internal combustion engine in which cylinders are arranged in two banks on either side of a single crankshaft.
4.nounThe person running a game of two-up.
5.nounOne who packs boxes.
6.nounA letterboxer.