The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HYDROGENATION
Definition of HYDROGENATION
noun
The chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.
Wiktionary · CC BY-SA
Where it comes from
From hydrogen + -ation.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
Same root, HYDROGEN · 12 relatives in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
HYDROGENATION in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 132, 29 September 2026. The most recent board was Day 159, 26 October 2026. Nobody has seen it on a board for 1 day.
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
HYDROGENATION starts with H and ends with N. Sorted, its letters read ADEGHINNOORTY - the shape to hunt for when the grid is scrambled. O and N appear more than once.
Words that start HYDROGENA
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found HYDROGENATION?
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