The definition of give someone the benefit of the doubt is:
(idiom) believe something is true because you don’t have any reason to think it is a lie
A: What is the best city in Korea for a tourist to visit?
A: Okay, I’ll give you the benefit of the doubt.
When Tomoko’s husband told her that he was not having an affair, she gave him the benefit of the doubt.
Mom: Son, did you break the television?
Mom: Are you sure?
Son: Um, yes.
Mom: Okay, I’ll give you the benefit of the doubt. I hope you are not lying to me.
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