The rare daily word game sweeping the globe. Find what's hidden in plain sight.
STACKING
Definition of STACKING
noun
The act by which something is stacked.
Wiktionary · CC BY-SA
Where it comes from
By surface analysis, stack + -ing. Compare Middle English stakkynge.
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.
STACKING in OUTLIER
Players have found it on 10 boards so far. 14 players have found it across Outlier's history.
It first turned up on Day 35, 24 June 2026. The most recent board was Day 102, 30 August 2026. Nobody has seen it on a board for 7 days.
First ever to find it
on Day 35, 24 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
STACKING starts with S and ends with G. Sorted, its letters read ACGIKNST - 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 STACKI
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 35
Could you have found STACKING?
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 35 - and most players walked straight past it.
Play today's OUTLIER