fictional character vs Colonel Blimp

fictional character and Colonel Blimp both are nouns.

Word	Noun	Adjective	Verb	Adverb
fictional character	Yes	No	No	No
Colonel Blimp	Yes	No	No	No

fictional character (noun)	Colonel Blimp (noun)
an imaginary person represented in a work of fiction (play or film or story)	any elderly pompous reactionary ultranationalistic person (after the cartoon character created by Sir David Low)
	a pompous reactionary cartoon character created by Sir David Low