The rare daily word game sweeping the globe. Find what's hidden in plain sight.
CHALKSTONE
Definition of CHALKSTONE
noun
A mass or piece of chalk.
Wiktionary · CC BY-SA
Where it comes from
From Old English ċealcstān, equivalent to chalk + stone.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Old English
- English
One recorded step before English.
Deepest traced root
7th
of 59 source languages in OUTLIER
3.7%
of traced words share this origin (2,849)
branch · 22.6% of traced words
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.
CHALKSTONE in OUTLIER
Players have found it on 6 boards so far.
It first turned up on Day 68, 27 July 2026. The most recent board was Day 144, 11 October 2026. Nobody has seen it on a board for 11 days.
First ever to find it
on Day 68, 27 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
CHALKSTONE starts with C and ends with E. Sorted, its letters read ACEHKLNOST - 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.
Could you have found CHALKSTONE?
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 68 - and most players walked straight past it.
Play today's OUTLIER