Trust

/trʌst/

noun

firm belief in the reliability, truth, or ability of someone or something.

synonyms: confidence, belief, faith, freedom from suspicion/doubt, sureness, certainty, certitude, assurance, conviction, credence, reliance

LAW
an arrangement whereby a person (a trustee) holds property as its nominal owner for the good of one or more beneficiaries.

synonyms: safe keeping, keeping, protection, charge, care, custody;

verb

believe in the reliability, truth, or ability of.

synonyms: have faith in, put/place one’s trust in, have (every) confidence in, believe in, pin one’s hopes/faith on;

ARCHAIC
allow credit to (a customer).