finback whale vs common rorqual

finback whale and common rorqual both are nouns.

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

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

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

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

finback 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