1. portable enclosures with low walls designed to keep babies and toddlers safe while they play
Usage: plural of playpen

Examples

• The daycare center had several playpens for the youngest children.
• Parents often use playpens to create a safe space for their babies to play.
• The store sells both wooden and plastic playpens.
• She set up two playpens in the living room for the twins.
• Modern playpens are lightweight and easy to fold for storage.
• The baby crawled around happily in one of the colorful playpens.