hopper vs hitting

hopper and hitting both are nouns.

Word	Noun	Adjective	Verb	Adverb
hopper	Yes	No	No	No
hitting	Yes	No	No	No

As nouns, hitting is a hypernym of hopper; that is, hitting is a word with a broader meaning than hopper:

Other hypernyms of hopper include hit, striking.

hopper (noun)	hitting (noun)
(baseball) a hit that travels along the ground	the act of contacting one thing with another
terrestrial plant-eating insect with hind legs adapted for leaping
funnel-shaped receptacle; contents pass by gravity into a receptacle below
a machine used for picking hops
someone who hops