1. an inner feeling or voice viewed as acting as a guide to the rightness or wrongness of one’s behavior
2. a feeling of guilt or moral anxiety about one’s actions or intentions

Examples

• His conscience told him to return the wallet he found.
• She couldn’t sleep because her conscience was bothering her.
• The politician acted according to his conscience despite party pressure.
• I have a clear conscience about my decision.
• Her guilty conscience made her confess the truth.
• He ignored his conscience and took the money anyway.
• The judge said the defendant showed no conscience for his crimes.