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English definition of “fly”

fly

verb [I] (MOVE QUICKLY)   /flɑɪ/ (past tense flew  /flu/, past participle flown  /floʊn/)
to move or go quickly or suddenly: Theo was startled when the door flew open. Saying she was late, Cathy flew by me and ran outside. The summer seems to have flown by (= passed quickly).
(Definition of fly verb (MOVE QUICKLY) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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