hitter vs mover

hitter and mover both are nouns.

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

As nouns, mover is a hypernym of hitter; that is, mover is a word with a broader meaning than hitter:

hitter (noun)	mover (noun)
(baseball) a ballplayer who is batting	a company that moves the possessions of a family or business from one site to another
someone who hits	someone who moves
	(parliamentary procedure) someone who makes a formal motion
	workman employed by a moving company