guilt vs guilty conscience

guilt and guilty conscience both are nouns.

Word	Noun	Adjective	Verb	Adverb
guilt	Yes	No	No	No
guilty conscience	Yes	No	No	No

As nouns, guilt and guilty conscience are synonyms defined as:

guilt and guilty conscience: remorse caused by feeling responsible for some offense

Other synonyms of guilt include guilt feelings, guilt trip.

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