batter vs hitter

batter and hitter both are nouns.

Word	Noun	Adjective	Verb	Adverb
batter	Yes	No	Yes	No
hitter	Yes	No	No	No

As nouns, batter and hitter are synonyms defined as:

Other synonyms of batter include batsman, slugger.

batter (noun)	hitter (noun)
a liquid or semiliquid mixture, as of flour, eggs, and milk, used in cooking	(baseball) a ballplayer who is batting
(baseball) a ballplayer who is batting	someone who hits

batter (verb)	hitter (verb)
make a dent or impression in
strike violently and repeatedly
strike against forcefully