guard against

guard against someone or something

to take care to avoid someone or something. Try to guard against getting a cold. You should guard against pickpockets.

Name	Pronounced	Usage
Nell	NEL	English
Annot	['ænɔt]
Mariko	mah-ṙee-ko	Japanese
Ad	[æd]
Akiva	ah-KEE-vah	Hebrew
Derryl	DER-əl	English (Rare)