sand hopper vs sandhopper

sand hopper and sandhopper both are nouns.

Word	Noun	Adjective	Verb	Adverb
sand hopper	Yes	No	No	No
sandhopper	Yes	No	No	No

As nouns, sand hopper and sandhopper are synonyms defined as:

sand hopper and sandhopper: small amphipod crustaceans that hop like fleas; common on ocean beaches

Other synonyms of sand hopper include beach flea, sand flea.

sand hopper (noun)	sandhopper (noun)
small amphipod crustaceans that hop like fleas; common on ocean beaches	small amphipod crustaceans that hop like fleas; common on ocean beaches