The rare daily word game sweeping the globe. Find what's hidden in plain sight.
CAUK
Definition of CAUK
noun
An opaque, earthy variety of barite, or heavy spar.
Wiktionary · CC BY-SA
Where it comes from
British dialect cauk (“limestone”), from Northern Middle English calke, from Anglian Old English calc; doublet of calx and chalk.
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.
CAUK in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 112, 9 September 2026. The most recent board was Day 113, 10 September 2026. Nobody has seen it on a board for 8 days.
First ever to find it
on Day 112, 9 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
CAUK starts with C and ends with K. Sorted, its letters read ACKU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Could you have found CAUK?
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 112 - and most players walked straight past it.
Play today's OUTLIER