yellowfin tuna vs yellowfin

yellowfin tuna and yellowfin both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellowfin tuna	Yes	No	No	No
yellowfin	Yes	No	No	No

As nouns, yellowfin tuna and yellowfin are synonyms defined as:

yellowfin tuna and yellowfin: may reach 400 pounds; worldwide in tropics

Other synonyms of yellowfin tuna include Thunnus albacares.

yellowfin tuna (noun)	yellowfin (noun)
may reach 400 pounds; worldwide in tropics	may reach 400 pounds; worldwide in tropics