slugger vs batsman

slugger and batsman both are nouns.

Word	Noun	Adjective	Verb	Adverb
slugger	Yes	No	No	No
batsman	Yes	No	No	No

As nouns, slugger and batsman are synonyms defined as:

Other synonyms of slugger include batter, hitter.

slugger (noun)	batsman (noun)
(baseball) a ballplayer who is batting	(baseball) a ballplayer who is batting
a boxer noted for an ability to deliver hard punches