guest of honor vs guest

guest of honor and guest both are nouns.

Word	Noun	Adjective	Verb	Adverb
guest of honor	Yes	No	No	No
guest	Yes	No	No	No

As nouns, guest is a hypernym of guest of honor; that is, guest is a word with a broader meaning than guest of honor:

Other hypernyms of guest of honor include invitee.

guest of honor (noun)	guest (noun)
the person in whose honor a gathering is held	(computer science) any computer that is hooked up to a computer network
	a visitor to whom hospitality is extended
	a customer of a hotel or restaurant etc.