compulsion by threat or force; coercion; constraint.

Law . such constraint or coercion as will render void a contract or other legal act entered or performed under its influence.

forcible restraint, esp. imprisonment.

noun

bondage , captivity , coercion , compulsion , confinement , constraint , control , detention , discipline , force , imprisonment , incarceration , pressure , restraint , violence , strength , durance , stranglehold , threat