Longman Dictionary of Contemporary English - guilt

~ n 1 a strong feeling of shame and sad- ness because you have done something that you know is wrong + about/a  (Don't you have any feelings of guilt about leaving David? | sense of guilt)  (He felt an enormous sense of guilt when he thought about how he'd treated her.) 2 the fact of having broken an official law or moral rule  (an admission of guilt | It is up to the prosecution to establish the defendant's guilt.) 3 responsibility and blame for something bad that has happened  (The teacher said Sonia was impossible to control and that the guilt lay with her parents.) 4 guilt trip a feeling of guilt about something  (lay/put a guilt trip on sb AmE informal (=make someone feel guilty about something))