The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HALOGEN
Definition of HALOGEN
noun
Any element of group 17, i.e. fluorine, chlorine, bromine, iodine, astatine and tennessine.
Wiktionary · CC BY-SA
Where it comes from
From Ancient Greek ἅλς (háls, “salt" or "sea”) + γεν- (gen-), "to produce" (coined by Berzelius in 1842). By surface analysis, halo- (“salt”) + -gen (“forming”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- English
One recorded step before English.
Deepest traced root
2nd
of 59 source languages in OUTLIER
12.6%
of traced words share this origin (3,706)
branch · 12.6% of traced words
How it is built
Same root, HALOGEN · 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.
HALOGEN in OUTLIER
Players have found it on 52 boards so far. 79 players have found it across Outlier's history.
It first turned up on Day 8, 29 May 2026. The most recent board was Day 148, 15 October 2026. Nobody has seen it on a board for 2 days.
First found by a player on Day 8, 29 May 2026.
Built from these letters
HALOGEN starts with H and ends with N. Sorted, its letters read AEGHLNO - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start HALOGE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 8
Could you have found HALOGEN?
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