The rare daily word game sweeping the globe. Find what's hidden in plain sight.
COELOM
Definition of COELOM
noun
A fluid-filled cavity within the body of an animal. The digestive system is suspended within the cavity, which is lined by a tissue called the peritoneum.
Wiktionary · CC BY-SA
Where it comes from
From international scientific vocabulary, from New Latin, from Ancient Greek κοίλωμα (koílōma, “hollow, cavity”). Cognate with coeliac.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- Latin
- English
2 recorded generations before English.
Deepest traced root
3rd
of 59 source languages in OUTLIER
12.2%
of traced words share this origin (9,700)
branch · 12.2% of traced words
How it is built
Same root, COELOM · 6 relatives 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.
COELOM in OUTLIER
Players have found it on 18 boards so far. 21 players have found it across Outlier's history.
It first turned up on Day 43, 2 July 2026. The most recent board was Day 153, 20 October 2026. Nobody has seen it on a board for 8 days.
First ever to find it
on Day 43, 2 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
COELOM starts with C and ends with M. Sorted, its letters read CELMOO - the shape to hunt for when the grid is scrambled. O appears more than once.
Words that start COELOM
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 43
Could you have found COELOM?
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 43 - and most players walked straight past it.
Play today's OUTLIER