The rare daily word game sweeping the globe. Find what's hidden in plain sight.
UNDERBOOK
Definition of UNDERBOOK
verb
To fail to book enough of something; not to sell as much of something as is required.
Wiktionary · CC BY-SA
Where it comes from
From under- + book.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
UNDERBOOK in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 147, 14 October 2026. Nobody has seen it on a board for 7 days.
First found by a player on Day 147, 14 October 2026.
Built from these letters
UNDERBOOK starts with U and ends with K. Sorted, its letters read BDEKNOORU - the shape to hunt for when the grid is scrambled. O appears more than once, including a double letter.
Same letters, different word
One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start UNDERB
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found UNDERBOOK?
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 147 - and most players walked straight past it.
Play today's OUTLIER