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English definition of “keep sth down”

keep sth down

(FOOD) phrasal verb with keep     /kiːp/ verb (kept, kept)
to be able to eat or drink something without vomiting : On the day after her operation she couldn't keep anything down.Vomiting and feelings of sickness
(Definition of keep sth down (FOOD) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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