1. (Of an army) withdraw from enemy forces as a result of their superior power or after a defeat.
2. Change one's mind or plans as a result of criticism or difficulty.
3. An act of moving back or withdrawing.
4. A signal for a military force to withdraw.
5. A quiet or secluded place in which one can rest and relax.
Plural Noun: Retreats.
Verb forms: Retreat, Retreated, Retreated.
The army must retreat and the order to do so must be given.