guard against

phrasal verb

guarded against; guarding against; guards against

: to try to keep (something) from happening

Clean the wound to guard against infection.

That's the sort of thinking we have to guard against.

Examples of guard against in a Sentence

Recent Examples on the Web

Pertussis cases have largely grown over the past few decades, after the U.S. and other high-income countries switched to pertussis vaccines after the 1970s that triggered fewer side effects but also are less effective at guarding against disease and spread. —Alexander Tin, CBS News, 19 Sep. 2024

To guard against the threat of explosives, all liquids and electronics will need to be taken out of bags and scanned separately. —David Nield, WIRED, 12 Sep. 2024

To do this, amino acids, lactic acid, and tartaric acid work together to penetrate the hair cuticle and guard against color fading. —Deanna Pai, Allure, 8 Aug. 2024

Indeed, few places in the US are so well guarded against the selfie-seeking crowds. —The Week Uk, theweek, 7 July 2024