take someone prisoner Definition

prisoner
noun

1. Someone who is under arrest or confined in prison.

Thesaurus: convict, con (slang), captive, inmate, jailbird (slang), detainee, internee.
2. A captive, especially in war.

Idiom: take no prisoners

To carry out some action right to its conclusions, without holding back for any reason.

Idiom: take someone prisoner

To capture and hold them as a prisoner.