poet vs Henry Wadsworth Longfellow

poet and Henry Wadsworth Longfellow both are nouns.

Word	Noun	Adjective	Verb	Adverb
poet	Yes	No	No	No
Henry Wadsworth Longfellow	Yes	No	No	No

poet (noun)	Henry Wadsworth Longfellow (noun)
a writer of poems (the term is usually reserved for writers of good poetry)	United States poet remembered for his long narrative poems (1807-1882)