the ideas and feelings you have that tell you whether something you are doing is right or wrongEach person must vote according to his or her own conscience.
The decision must be a matter of individual conscience.
guilty conscience (=a bad feeling because you have done something wrong): It’s hard to imagine how people live with a guilty conscience.
clear conscience (=the knowledge that you have done nothing wrong): We want to leave with a clear conscience, knowing we did the job right.
struggle/wrestle with your conscience: After a night of wrestling with his conscience, he decided to go to the police.
ease someone’s conscience: People give a few dollars to charity in order to ease their consciences.