fictitious character vs Sir Gawain

fictitious character and Sir Gawain both are nouns.

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

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