guilt vs guilt trip

guilt and guilt trip both are nouns.

Word	Noun	Adjective	Verb	Adverb
guilt	Yes	No	No	No
guilt trip	Yes	No	No	No

As nouns, guilt and guilt trip are synonyms defined as:

guilt and guilt trip: remorse caused by feeling responsible for some offense

Other synonyms of guilt include guilt feelings, guilty conscience.

guilt (noun)	guilt trip (noun)
remorse caused by feeling responsible for some offense	remorse caused by feeling responsible for some offense
the state of having committed an offense