Belief: The mental act, condition, or habit of placing trust or confidence in another. The mental acceptance and conviction in the truth, actuality, or validity of something.

Belief vs.Faith: 'Beliefs' are existing ideas that one holds to; 'faith' looks toward what is to come. 'Belief' relates most to knowledge and understanding; 'faith' relates most to hope and trust. 'Belief' may or may not imply that the believer is certain, whereas 'faith' does.