slogger vs boxer

slogger and boxer both are nouns.

Word	Noun	Adjective	Verb	Adverb
slogger	Yes	No	No	No
boxer	Yes	No	No	No

As nouns, boxer is a hypernym of slogger; that is, boxer is a word with a broader meaning than slogger:

Other hypernyms of slogger include pugilist.

slogger (noun)	boxer (noun)
a boxer noted for an ability to deliver hard punches	a breed of stocky medium-sized short-haired dog with a brindled coat and square-jawed muzzle developed in Germany
someone who works slowly and monotonously for long hours	someone who fights with his fists for sport
someone who walks in a laborious heavy-footed manner	a workman employed to pack things into containers