The rare daily word game sweeping the globe. Find what's hidden in plain sight.
STACKS
Definition of STACKS
noun
plural of stack
noun
A pile. A large pile of hay, grain, straw, or the like, larger at the bottom than the top, sometimes covered with thatch. A pile of similar objects, each directly on top of the last.
Wiktionary · CC BY-SA
Word DNA
STACKS inherits its ancestry from its root, STACK.
Line of descent
4 recorded generations before English.
Deepest traced root
15th
of 59 source languages in OUTLIER
0.8%
of traced words share this origin (234)
branch · 22.3% of traced words
How it is built
Same root, STACK · 4 relatives in the game
Its etymology also names Danish, Icelandic, Norwegian, Swedish.
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
STACKS in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 140, 7 October 2026. Nobody has seen it on a board for 9 days.
First found by a player on Day 140, 7 October 2026.
Built from these letters
STACKS starts with S and ends with S. Sorted, its letters read ACKSST - the shape to hunt for when the grid is scrambled. S appears more than once.
Could you have found STACKS?
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 140 - and most players walked straight past it.
Play today's OUTLIER