Let it go means to stop thinking or caring about something or someone. It is similar to get over it.
- Let it go, will ya? I already apologized for breaking your car!
- I’ve tried but I just can’t let it go. You must pay me back!
This idiom is also associated with the movie Frozen. It is the title and main verse of one of it’s most famous songs.
- If I hear let it go again I’m going to lose it.
- Write three to four sentences with the idiom let it go.