To disclose.
Of a school: to finish for the day or term, allowing the pupils to go home.
To rent out.
Of sound, to emit.
To allow to operate at higher speed by adjusting controls.
To release.
To enlarge by adjusting one or more seams.
To inform on, especially in betrayal of others.
To contact or cooperate with the police for any reason.
A ball used in the sport of Quidditch.
A thief.
An informer, one who betrays his group.
A nose.
A tiny morsel.