conscience
US /ˈkɑːn.ʃəns/
UK /ˈkɑːn.ʃəns/

1.
conciencia
an inner feeling or voice acting as a guide to the rightness or wrongness of one's behavior
:
•
He has a guilty conscience about what he did.
Tiene la conciencia culpable por lo que hizo.
•
Let your conscience be your guide.
Deja que tu conciencia sea tu guía.