through
/θruː/preposition★Intermediate
informal
Moving from one side of something to the opposite side; across.
The train passed through the tunnel.
The train entered the tunnel and emerged on the other side.
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Used as a preposition to describe physical movement.
formal
By means of; using as a channel or medium.
Send the documents through email.
Transmit the documents using email as the medium.
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Often paired with nouns like 'mail', 'email', 'pipeline'.
English Dictionary