Felis concolor vs catamount

Felis concolor and catamount both are nouns.

Word	Noun	Adjective	Verb	Adverb
Felis concolor	Yes	No	No	No
catamount	Yes	No	No	No

As nouns, Felis concolor and catamount are synonyms defined as:

Other synonyms of Felis concolor include cougar, mountain lion, painter, panther, puma.

Felis concolor (noun)	catamount (noun)
large American feline resembling a lion	large American feline resembling a lion
	short-tailed wildcats with usually tufted ears; valued for their fur