Sir Gawain vs fictitious character

Sir Gawain and fictitious character both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sir Gawain	Yes	No	No	No
fictitious character	Yes	No	No	No

Sir Gawain (noun)	fictitious character (noun)
(Arthurian legend) a nephew of Arthur and one of the knights of the Round Table	an imaginary person represented in a work of fiction (play or film or story)