hostage
/ˈhɒstɪdʒ//ˈhɑstɪdʒ/noun
Definitions
A person given as a pledge or security for the performance of the conditions of a treaty or similar agreement, such as to ensure the status of a vassal.
A person seized in order to compel another party to act (or refrain from acting) in a certain way, because of the threat of harm to the hostage.
Something that constrains one's actions because it is at risk.
One who is compelled by something, especially something that poses a threat; one who is not free to choose their own course of action.
verb
Definitions
(possibly nonstandard) To give (someone or something) as a hostage to (someone or something else).
(possibly nonstandard) To hold (someone or something) hostage, especially in a way that constrains or controls the person or thing held, or in order to exchange for something else.