Peekaboo (noun)

A game played with babies and young children in which one person hides their face or body and then reveals it again, often accompanied by the phrase "peekaboo".

Origin:

From english phrase peek-a-boo, it's used to play with babies and young children.

Examples:

1. The baby squealed with delight as we played peekaboo.
2. Playing peekaboo is a great way to entertain babies and young children.
3. The toddler couldn't get enough of the peekaboo game with her mother.
4. Peekaboo is a simple but entertaining game that can be played with babies of all ages.
5. The little one was delighted to play peekaboo with his older sister.