Guilt (noun)

1. The fact of having committed a crime or offence.
2. The state of having committed an offence or crime.
3. The feeling of having done something wrong.
4. The state of feeling responsible for a wrongdoing.
5. The state of being responsible for a wrongdoing.

Origin:

Middle english: from old french guilt, from latin culpabilitas, from culpare "to blame".

Examples:

1. She felt guilt for not visiting her mother more often.
2. He was convicted of the crime and felt guilty.
3. The guilt of the accused was not proven in court.
4. She felt guilty for not speaking up.
5. He carried a sense of guilt with him.