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English definition of “through”

through

adjective, adverb [not gradable]  /θru/ us  

through adjective, adverb [not gradable] (ACROSS)

from one side or end to the other, from one part to another, or from the beginning to the end: We drove through the tunnel We took a shortcut through the woods. Have you read the report all the way through? If you drive through a red light or stop sign, you do not stop at it.

through adjective, adverb [not gradable] (FINISHED)

finished or completed: Are you through with that book? My girlfriend says we’re through (= our relationship is over).

through adjective, adverb [not gradable] (DURING)

during a period of time, esp. from the beginning to the end: We sat through two lectures and then left. She had just enough energy to get through the day. I work Tuesdays through Saturdays (= each day during this period).

through

preposition  /θru/ us  

through preposition (AS A RESULT)

as a result of: Bob learned of the contract through a story in the newspaper.

through preposition (USING)

by; using: Schools are financed through property taxes.
(Definition of through from the Cambridge Academic Content Dictionary © Cambridge University Press)
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