noun
playpen
noun
1
A small portable enclosure that keeps a baby or toddler safely contained while playing.
"We set the playpen up in the living room so we could keep an eye on her."
2
A space where someone can freely experiment or act without outside interference.
"The startup treated the lab as its own playpen for wild ideas."
How to Use Playpen
Learner’s notesIn plain EnglishA safe enclosed space for play — literally for babies, or figuratively for free experimentation.
Word Forms
playpens plural
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We set the _____ up in the living room so we could keep an eye on her.
Etymology
From play + pen (an enclosure).