The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PREBOOK
Definition of PREBOOK
verb
To book in advance.
Wiktionary · CC BY-SA
Where it comes from
From pre- + book.
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.
PREBOOK in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 52, 11 July 2026. The most recent board was Day 110, 7 September 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 52, 11 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
PREBOOK starts with P and ends with K. Sorted, its letters read BEKOOPR - the shape to hunt for when the grid is scrambled. O appears more than once, including a double letter.
Words that start PREBOO
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 52
Could you have found PREBOOK?
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 52 - and most players walked straight past it.
Play today's OUTLIER