let go

verb

To release from one's grasp; to go from a state of holding on to a state of no longer holding on.
“You're hurting him! Let him go!”
“Let go of the phone.”
To emotionally disengage or distract oneself from a situation.
“You are supported, so you can just let go and relax. Inhale and slowly exhale.”
To dismiss from employment.
“The secretary didn't work out, so her boss told her she was being let go.”
“Puel was let go in June despite leading Southampton to their first major final for 14 years and an eighth-place finish in the Premier League. But apparently his style was too boring and some players and many fans disliked his method, so he had to go – fair enough but look at them now.”
To ignore (a comment, etc.).
“Cora gave her shoulders a rebellious toss. "I'm sick of always getting oysters; I'd sooner come out with you." Bradly let that go. "You had enough money this week without getting oysters, didn't you?"”
To fail to maintain a standard of appearance, behavior, or performance.
To fail to maintain a standard of appearance, behavior, or performance.
“Wow, dude! You've really let yourself go this time!”
Used other than figuratively or idiomatically: see let, go.
“Please, Mom, can you let me go to her party?”
“We shan’t let our old car go to anyone for less than 15 grand.”