The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SULFONATION
Definition of SULFONATION
noun
(chemistry) The replacement of a hydrogen atom of an organic compound with a sulfonic acid (-SO3H) functional group, often by reaction with sulfuric acid at high temperatures
Wiktionary · CC BY-SA
Word DNA
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.
SULFONATION in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 132, 29 September 2026. It was on the latest finished board.
First ever to find it
on Day 132, 29 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
SULFONATION starts with S and ends with N. Sorted, its letters read AFILNNOOSTU - the shape to hunt for when the grid is scrambled. O and N appear more than once.
Words that start SULFONA
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found SULFONATION?
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 132 - and most players walked straight past it.
Play today's OUTLIER