› [T] to believe that someone is good and honest and will not harm you: My sister warned me not to trust him. → Opposite distrust → Opposite mistrust
trust sb to do sth › to be sure that someone will do the right thing or what they should do: I trust them to make the right decision.
trust sb with sb/sth › to allow someone to look after someone or something because you believe they will be careful: I wouldn't trust him with my car.
Trust sb (to do sth)! mainly UK informal › used to say that it is typical of someone to do something stupid: Trust Chris to leave the tickets at home!
I trust (that) formal › used to say that you hope something is true: I trust that you had an enjoyable stay.