What is another word for pen up?
Pronunciation: [pˈɛn ˈʌp] (IPA) 
Pen up is a phrase that means to confine or restrict something or someone. There are several synonyms that convey similar meanings to pen up. One of them is the expression "lock up," which is used to describe the act of confining someone or something behind a locked door or barrier. Another term that can be used as an alternative to pen up is "imprison." This word suggests a more serious and severe form of confinement. "Tether," "bound," and "restrain" are other terms that can be employed to refer to penning up.
Overall, these synonyms depict the act of restricting, confining, and restraining someone or something.
