cougar vs catamount

cougar and catamount both are nouns.

Word	Noun	Adjective	Verb	Adverb
cougar	Yes	No	No	No
catamount	Yes	No	No	No

As nouns, cougar and catamount are synonyms defined as:

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

cougar (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