The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HYDROGENASE
Definition of HYDROGENASE
noun
Any enzyme that catalyzes the reduction of a substrate by the reversible oxidation of hydrogen.
Wiktionary · CC BY-SA
Where it comes from
From hydrogen + -ase, after dehydrogenase.
Etymology via 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.
HYDROGENASE in OUTLIER
Players have found it on 16 boards so far. 22 players have found it across Outlier's history.
It first turned up on Day 41, 30 June 2026. The most recent board was Day 147, 14 October 2026. Nobody has seen it on a board for 5 days.
First found by a player on Day 41, 30 June 2026.
Built from these letters
HYDROGENASE starts with H and ends with E. Sorted, its letters read ADEEGHNORSY - the shape to hunt for when the grid is scrambled. E appears more than once.
Words that start HYDROGE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 41
Could you have found HYDROGENASE?
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 41 - and most players walked straight past it.
Play today's OUTLIER