in somebody’s trust | in the trust of somebodyidiomPart oftrustin somebody’s trust | in the trust of somebodyin somebody’s trust | in the trust of somebody — idiomidiom1. Being cared for or looked after by a specific person.1.idiomDefinitionBeing cared for or looked after by a specific person.ExampleThe children were left in the trust of their aunt.Our cat stayed in the trust of a neighbor during the trip.