To "confine" is to restrictorlimitsomethingorsomeonewithinset boundaries. It can apply to physicalspacesas wellasabstractconceptslikefreedom and creativity.
Verb
to closewithinbounds, limitorhold back from movement
Thisholds the local until the expresspassengerschangetrains
About a dozenanimals were heldinside the stockade
The illegalimmigrants were heldat a detentioncenter
The terroristsheld the journalists for ransom
deprive of freedom; take into confinement
close in; darknessenclosed him"
prevent from leavingor from beingremoved
restrictorconfine, "I limit you to twovisits to the pub a day"