in case

Idioms  

1. Also, just in case . If it should happen that. For example, In case he doesn't show up, we have a backup speaker . The variant also is used without a following clause to mean simply “as a precaution,” as in I took an umbrella just in case . [c. 1400]

2. in case of ; in the event of . If there should happen to be. For example, Here is a number to call in case of an emergency , or In the event of a power failure, we'll have to shift our plans . Similarly, in that case means “if that should happen,” as in You're alone in the store? In that case I'll bring your lunch . The first usage dates from the early 1700s, the second (with event ) from about 1600, and the third from the mid-1800s. Also see in any case ; in no case ; in the case of .

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Example Sentences

See Examples For:

in case

When booking a seat in first class or business class, try to avoid the last couple of rows in case there’s a last-minute switch to a smaller plane with fewer premium seats.

From The Wall Street Journal ● Sep. 18, 2026

Doesn’t matter — it has to be there in case you have to look at it.

From Los Angeles Times ● Sep. 16, 2026

At one point, a Greenlandic politician told ProPublica, some schoolchildren were instructed to practice hiding under their desks in case of such an event.

From Salon ● Sep. 16, 2026

Is there a way to name an alternate or contingent beneficiary in case he passes away before I do, without creating confusion or complications with my estate plan?

From MarketWatch ● Sep. 14, 2026

She said a big brother has to know how to change diapers in case his mom forgets.

From "The Tenth Mistake of Hank Hooperman" by Gennifer Choldenko