Constraint by threat.
Restraint in which a person is influenced, whether by lawful or unlawful forceful compulsion of their liberty by monition or implementation of physical enforcement; legally for the incurring of civil liability, of a citizen's arrest, or of subrogation, or illegally for the committing of an offense, of forcing a contract, or of using threats.
To put under duress; to pressure.
The decommissioning of a radioactive site by encasing it in concrete
The act of entombing or the state of being entombed