Sir Galahad vs fictitious character

Sir Galahad and fictitious character both are nouns.

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

Sir Galahad (noun)	fictitious character (noun)
(Arthurian legend) the most virtuous knight of the Round Table; was able to see the Holy Grail	an imaginary person represented in a work of fiction (play or film or story)