The rare daily word game sweeping the globe. Find what's hidden in plain sight.
FUEL
Definition of FUEL
noun
Substance consumed to provide energy through combustion, or through chemical or nuclear reaction.
Wiktionary · CC BY-SA
Where it comes from
From Middle English fuayle, from Old French fouaille, feuaille (“firewood, kindling”), from feu (“fire”), from Late Latin focus (“fire”), from Latin focus (“hearth”), whence English focus. Cognate with Spanish fuego (“fire”), and Portuguese fogo (“fire”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
3 recorded generations before English.
Deepest traced root
1st
of 59 source languages in OUTLIER
30.7%
of traced words share this origin (23,981)
branch · 30.7% of traced words
How it is built
Same root, FUEL · 8 relatives in the game
Its etymology also names Portuguese, Spanish.
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
FUEL in OUTLIER
Players have found it on 26 boards so far. 73 players have found it across Outlier's history.
It first turned up on Day 8, 29 May 2026. The most recent board was Day 157, 24 October 2026. Nobody has seen it on a board for 1 day.
First found by a player on Day 8, 29 May 2026.
Built from these letters
FUEL starts with F and ends with L. Sorted, its letters read EFLU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start FUEL
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found FUEL?
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 8 - and most players walked straight past it.
Play today's OUTLIER