Sir Thomas Malory vs writer

Sir Thomas Malory and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sir Thomas Malory	Yes	No	No	No
writer	Yes	No	No	No

Sir Thomas Malory (noun)	writer (noun)
English writer who published a translation of romances about King Arthur taken from French and other sources (died in 1471)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something