The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PEEKABOO
Definition of PEEKABOO
noun
A game for a small child in which one covers one's face, then suddenly reveals it, saying "Boo!" or "Peekaboo!".
Wiktionary · CC BY-SA
Where it comes from
From peek + -a- + boo.
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
PEEKABOO in OUTLIER
Players have found it on 8 boards so far. 13 players have found it across Outlier's history.
It first turned up on Day 8, 29 May 2026. The most recent board was Day 97, 25 August 2026. Nobody has seen it on a board for 5 days.
First found by a player on Day 8, 29 May 2026.
Built from these letters
PEEKABOO starts with P and ends with O. Sorted, its letters read ABEEKOOP - the shape to hunt for when the grid is scrambled. E and O appear more than once, including a double letter.
Words that start PEEKAB
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 8
Could you have found PEEKABOO?
OUTLIER is a daily word game. One grid, the same grid for everybody, and the words nobody else spots are the ones that pay. This word was on Day 8 - and most players walked straight past it.
Play today's OUTLIER