grounder vs chopper

grounder and chopper both are nouns.

Word	Noun	Adjective	Verb	Adverb
grounder	Yes	No	No	No
chopper	Yes	No	No	No

As nouns, chopper is a hyponym of grounder; that is, chopper is a word with a more specific, narrower meaning than grounder:

Other hyponyms of grounder include chop, roller.

grounder (noun)	chopper (noun)
(baseball) a hit that travels along the ground	a grounder that bounces high in the air
	a butcher's knife having a large square blade
	an aircraft without wings that obtains its lift from the rotation of overhead blades
	informal terms for a human `tooth'