The meaning of TRUST ~noun reliance on the integrity, strength, ability, surety, etc., of a person or thing; confidence. confident expectation of something; hope. confidence in the certainty of future payment for property or goods received; credit: to sell merchandise on trust. ~adjective Law. of or relating to trusts or a trust. ~verb (used without object) to rely upon or place confidence in someone or something (usually followed by in or to): to trust in another's honesty; trusting to luck. to have confidence; hope: Things work out if one only trusts.