to move your hand or an object onto the surface of something so that it touches it, usually with force:
Teachers are not allowed to hit their pupils.
This type of glass won't shatter no matter how hard you hit it.
hit something with something She hit her thumb with the hammer.
to touch something with sudden force:
They were going about 60 kilometres an hour when their car hit the tree.
be hit in One journalist was hit in the leg by a stray bullet.
hit something on something That new shelf in the bathroom is too low - I just hit my head on it.