The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ACID
Definition of ACID
adjective
Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
Wiktionary · CC BY-SA
Where it comes from
From French acide, from Latin acidus (“sour, acid”), from aceō (“to be sour”). Doublet of agita.
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.
ACID in OUTLIER
It has fitted 1 board so far. 17 players have found it across Outlier's history.
It first turned up on Day 111, 8 September 2026. It was on the latest finished board.
First found by a player on Day 20, 9 June 2026.
Built from these letters
ACID starts with A and ends with D. Sorted, its letters read ACDI - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start ACID
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found ACID?
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 111 - and most players walked straight past it.
Play today's OUTLIER