hopper vs grasshopper

hopper and grasshopper both are nouns.

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

As nouns, hopper and grasshopper are synonyms defined as:

hopper and grasshopper: terrestrial plant-eating insect with hind legs adapted for leaping

hopper (noun)	grasshopper (noun)
(baseball) a hit that travels along the ground	terrestrial plant-eating insect with hind legs adapted for leaping
terrestrial plant-eating insect with hind legs adapted for leaping	a cocktail made of creme de menthe and cream (sometimes with creme de cacao)
funnel-shaped receptacle; contents pass by gravity into a receptacle below
a machine used for picking hops
someone who hops