fin whale vs common rorqual

fin whale and common rorqual both are nouns.

Word	Noun	Adjective	Verb	Adverb
fin whale	Yes	No	No	No
common rorqual	Yes	No	No	No

As nouns, fin whale and common rorqual are synonyms defined as:

fin whale and common rorqual: large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific

Other synonyms of fin whale include Balaenoptera physalus, finback, finback whale.

fin whale (noun)	common rorqual (noun)
large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific	large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific