believe in
phrasal verbbelieve in somebody/something
- to feel certain that somebody/something exists
- Do you believe in God?
believe in somebody
- to feel that you can trust somebody and/or that they will be successful
- They need a leader they can believe in.
- I never thought I could make it as an actor, but my parents always believed in me.
believe in something
- to think that something is good, right or acceptable
- Do you believe in capital punishment?
- believe in doing something I don't believe in hitting children.