Sus scrofa vs boar

Sus scrofa and boar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sus scrofa	Yes	No	No	No
boar	Yes	No	No	No

As nouns, Sus scrofa and boar are synonyms defined as:

Sus scrofa and boar: Old World wild swine having a narrow body and prominent tusks from which most domestic swine come; introduced in United States

Other synonyms of Sus scrofa include wild boar.

Sus scrofa (noun)	boar (noun)
Old World wild swine having a narrow body and prominent tusks from which most domestic swine come; introduced in United States	an uncastrated male hog
domestic swine	Old World wild swine having a narrow body and prominent tusks from which most domestic swine come; introduced in United States