Better (to be) safe than sorry is used to say that it is better to be careful, even if this takes time, effort, etc, than take a risk that may have a bad result

For example:

Jared went back to check that he had locked his door because he thought it was better to be safe than sorry.

The grocery store always threw out milk that might go sour soon because they thought it was better to be safe than sorry.

Even though her paper wasn’t due for 2 more days, Yessica finished it today because she wanted to be better safe than sorry.

To be better safe than sorry, Helen brought two bottles of sunscreen with her on the beach vacation.

After three days of rain, Mr. Hayes took his umbrella to work on a sunny day, better safe than sorry.

Tradução:

“Better safe than sorry” significa é “melhor prevenir do que remediar ou “seguro morreu de velho.”