from one side to the other
The ball went through the window.
seeing or hearing something on the other side
I saw the mountains through the clouds.
from start to finish
She worked through the night.
past a barrier or test
He got through the difficult exam.
including both start and end
The store is open Monday through Friday.
by means of; because of
We met through a friend.
past a barrier
The car drove straight through.
without stopping
This train goes through to the city.
connected by phone
Please put me through to the manager.
completely
My clothes are wet through.
traffic that goes from one side to another without stopping
This is a through road for traffic.
a train that goes to the final stop without changing
We took a through train to the coast.
a road open at both ends
This street is a through route for cars.
finished or ended
Our relationship is through.