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guard against sth

phrasal verb with guard
 
/ɡɑːd/
 
US  /ɡɑːrd/ verb [T]

Definition

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 Learner's Dictionary & Thesaurus © Cambridge University Press)
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