BELIEF, FAITH, CREDENCE, CREDIT mean assent to the truth of something offered for acceptance.

BELIEF may or may not imply certitude in the believer.

e.g. my belief that I had caught all the errors

FAITH almost always implies certitude even where there is no evidence or proof.

e.g. an unshakable faith in God

CREDENCE suggests intellectual assent without implying anything about grounds for assent.

e.g. a theory now given credence by scientists

CREDIT may imply assent on grounds other than direct proof.

e.g. gave full credit to the statement of a reputable witness

1. complete trust or confidence in someone or something:

«…への» (信念に基づく, 一方的な強い)信頼, 信用 «in»

e.g. this restores one's faith in politicians.

2. strong belief in God or in the doctrines of a religion, based on spiritual apprehension rather than proof.

«…への» 信仰(心) «in»

a system of religious belief:

〖通例修飾語と共に〗…教, 宗教; 信条, 教義; 宗派

e.g. the Christian faith.

a strongly held belief or theory:

«…に対する/…という» 信念, 確信, 自信 «in/that節»

e.g. the faith that life will expand until it fills the universe.

be disloyal (or loyal):

e.g. an attempt to make us break faith with our customers.

Middle English: from Old French feid, from Latin fides.