osprey vs fish hawk

osprey and fish hawk both are nouns.

Word	Noun	Adjective	Verb	Adverb
osprey	Yes	No	No	No
fish hawk	Yes	No	No	No

As nouns, osprey and fish hawk are synonyms defined as:

osprey and fish hawk: large harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years

Other synonyms of osprey include fish eagle, Pandion haliaetus, sea eagle.

osprey (noun)	fish hawk (noun)
large harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years	large harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years