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English definition of “through”

through

preposition
 
 
/θruː/
ONE SIDE TO ANOTHER A2 from one end or side of something to the other: The River Seine flows through Paris. The sun was shining through the window. She cut through the wire.Through, across, opposite and against
START TO END B1 from the start to the end of something: He worked through the night. The phone rang halfway through the programme.Through, across, opposite and against
BECAUSE OF B1 because of someone or something, or with someone's help: I got the job through my mum's friend. He became ill through eating undercooked meat.Connecting words which introduce a cause or reason
UNTIL US (UK/US to) from a particular time until and including another time: The store is open Monday through Friday. I worked there from May through September.Until a particular moment
(Definition of through preposition from the Cambridge Learners Dictionary © Cambridge University Press)
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