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English definition of “duck”

duck

verb     /dʌk/
[I or T] to move your head or the top part of your body quickly down, especially to avoid being hit: I saw the ball hurtling towards me and ducked (down). Duck your head or you'll bang it on the doorframe.Moving in order to avoid contactDigressing and being indirect or evasive [T] to push someone underwater for a short time: The boys were splashing about and ducking each other in the pool.Moving in order to avoid contactDigressing and being indirect or evasive [I + adv/prep] to move quickly to a place, especially in order not to be seen: When he saw them coming, he ducked into a doorway.Moving in order to avoid contactDigressing and being indirect or evasive
(Definition of duck verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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