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English definition of “guard against sth”

guard against sth

verb [T] uk phrasal verb with guard   /ɡɑːd/ us    /ɡɑːrd/
to take careful action in order to try to prevent something from happening: Regular exercise helps guard against heart disease.Preventing and impedingLimiting and restricting
(Definition of guard against sth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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