re·straint 
/rɪˈstreɪnt/ noun
plural re·straints /rɪˈstreɪnt/ noun 1 [count] somewhat formal : a way of limiting, controlling, or stopping something — usually plural — often + on ▪ The government has placed/put/imposed restraints on imports. 2 [count] formal : a device that limits a person's movement
▪ Make sure the child safety restraint is in place. ▪ The prisoner was placed in restraints. 3 [noncount] : control over your emotions or behavior
▪ His angry response showed a lack of restraint. ▪ The government has acted with restraint in dealing with this crisis. ▪ You should exercise restraint. 4 [noncount] formal : physical force that prevents someone from moving
▪ (US) She was charged with unlawful restraint. ▪ He was placed under restraint. [=he was restrained]
▪ Make sure the child safety restraint is in place. ▪ The prisoner was placed in restraints.
▪ His angry response showed a lack of restraint. ▪ The government has acted with restraint in dealing with this crisis. ▪ You should exercise restraint.
▪ (US) She was charged with unlawful restraint. ▪ He was placed under restraint. [=he was restrained]
