boar vs wild boar

boar and wild boar both are nouns.

Word	Noun	Adjective	Verb	Adverb
boar	Yes	No	No	No
wild boar	Yes	No	No	No

As nouns, boar and wild boar are synonyms defined as:

boar and wild 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 boar include Sus scrofa.

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