re⋅straint
-noun
1. a restraining action or influence: freedom from restraint.
2. Sometimes, restraints. a means of or device for restraining, as a harness for the body.
3. the act of restraining, holding back, controlling, or checking.
4. the state or fact of being restrained; deprivation of liberty; confinement.
5. constraint or reserve in feelings, behavior, etc.