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English definition of “jump the gun”

jump the gun

to do something too soon , especially without thinking carefully about it: They've only just met - isn't it jumping the gun to be talking about marriage already?Hurrying and doing things quicklyBusy and active
(Definition of jump the gun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Definitions of “jump the gun” in other dictionaries

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