The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HYDROGEN
Definition of HYDROGEN
noun
The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from French hydrogène (“hydrogen”), coined by the French chemists Louis-Bernard Guyton de Morveau (1737–1816) and Antoine Lavoisier (1743–1794) from hydro- (prefix meaning ‘water’) + -gène (suffix denoting a producer of something), from the fact that water is produced as a compound when hydrogen is oxidized. By surface analysis, hydro- (prefix meaning ‘water’) + -gen (suffix denoting a producer of something).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- French
- English
One recorded step before English.
Deepest traced root
5th
of 58 source languages in OUTLIER
7.2%
of traced words share this origin (2,087)
branch · 15.4% of traced words
How it is built
Same root, HYDROGEN · 1 relative 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.
HYDROGEN in OUTLIER
Players have found it on 64 boards so far. 120 players have found it across Outlier's history.
It first turned up on Day 12, 1 June 2026. The most recent board was Day 147, 14 October 2026. It was on the latest finished board.
First found by a player on Day 12, 1 June 2026.
Built from these letters
HYDROGEN starts with H and ends with N. Sorted, its letters read DEGHNORY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start HYDROG
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 12
Could you have found HYDROGEN?
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 12 - and most players walked straight past it.
Play today's OUTLIER