just in case
This page is about the idiom just in case
You can say "just in case" when describing a possible future problem and a precaution that has been, or should be, taken against it.
- I'm taking an umbrella, just in case it rains.
- You probably won't need to go to a hospital in Europe, but you should get some health insurance anyway, just in case.
I should get some candles, just in case
Contributor: Matt Errey