The rare daily word game sweeping the globe. Find what's hidden in plain sight.
CESIUM
Definition of CESIUM
noun
Alternative form of caesium.
noun
The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
Wiktionary · CC BY-SA
Word DNA
How it is built
Same root, CESIUM · 1 relative in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
CESIUM in OUTLIER
Players have found it on 54 boards so far. 91 players have found it across Outlier's history.
It first turned up on Day 29, 18 June 2026. The most recent board was Day 153, 20 October 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 29, 18 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
CESIUM starts with C and ends with M. Sorted, its letters read CEIMSU - 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.
Also seen on Day 29
Could you have found CESIUM?
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 29 - and most players walked straight past it.
Play today's OUTLIER