The rare daily word game sweeping the globe. Find what's hidden in plain sight.
UMBO
Definition of UMBO
noun
The boss of a shield, at or near the middle and usually projecting, sometimes in a sharp spike.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from Latin umbō (“a shield boss”). Doublet of umbone.
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.
UMBO in OUTLIER
Players have found it on 19 boards so far. 26 players have found it across Outlier's history.
It first turned up on Day 9, 29 May 2026. The most recent board was Day 113, 10 September 2026. Nobody has seen it on a board for 7 days.
First found by a player on Day 9, 29 May 2026.
Built from these letters
UMBO starts with U and ends with O. Sorted, its letters read BMOU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
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 UMBO
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 9
Could you have found UMBO?
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 9 - and most players walked straight past it.
Play today's OUTLIER