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English definition of “lull”

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lull

verb [T] uk   /lʌl/ us  
to cause someone to feel calm or to feel that they want to sleep: The motion of the car almost lulled her to sleep.
Phrasal verbs

lull

noun [C] uk   /lʌl/ us  
a short period of calm in which little happens: There has been a lull in the fighting. a lull in the conversation/traffic
(Definition of lull from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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