let go

Short definition from Wiktionary

Verb

1. 1
   To release from one's grasp; to go from a state of holding on to a state of no longer holding on.
2. 2
   To emotionally disengage or distract oneself from a situation.
3. 3
   To dismiss from employment.
4. 4
   To ignore (a comment, etc.).
5. 5
   To fail to maintain a standard of appearance, behavior, or performance.
6. 6
   To fail to maintain a standard of appearance, behavior, or performance: To gain weight.
7. 7
   Used other than figuratively or idiomatically: see let, go.