perch vs order Percomorphi

perch and order Percomorphi both are nouns.

Word	Noun	Adjective	Verb	Adverb
perch	Yes	No	Yes	No
order Percomorphi	Yes	No	No	No

perch (noun)	order Percomorphi (noun)
spiny-finned freshwater food and game fishes	one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna
any of numerous spiny-finned fishes of various families of the order Perciformes
support consisting of a branch or rod that serves as a resting place (especially for a bird)
any of numerous fishes of America and Europe
an elevated place serving as a seat
a linear measure of 16.5 feet
a square rod of land