hold someone prisoner
US /hoʊld ˈsʌmwʌn ˈprɪzənər/
UK /hoʊld ˈsʌmwʌn ˈprɪzənər/
1.
to keep someone as a captive or in confinement
:
•
The rebels decided to hold the diplomat prisoner until their demands were met.
•
The kidnappers continued to hold their victim prisoner in a remote cabin.