1. The fact of having committed a breach of conduct especially violating law and involving a penalty.
  2. The state of one who has committed an offense especially consciously.
  3. Feelings of deserving blame especially for imagined offenses or from a sense of inadequacy.
  4. A feeling of deserving blame for offenses.
  5. (verb) To cause someone to feel guilty.
  6. (verb) To persuade someone to do something by causing feelings of guilt.

The emotion of Guilt is found in the Large Intestine meridian in the Metal element.

Definition from Dictionary by Merriam-Webster.