The rare daily word game sweeping the globe. Find what's hidden in plain sight.

TRIOXYGEN

/tɹaɪˈɒksɪdʒən/9 letters

Definition of TRIOXYGEN

noun

ozone (the triatomic allotrope of oxygen)

Wiktionary · CC BY-SA

Where it comes from

From tri- + oxygen.

Etymology via Wiktionary (CC BY-SA).

Word DNA

How it is built

noun4 syllablescompoundtri-

Same root, TRIOXYGEN · 1 relative in the game

The Word DNA of OUTLIER →

Rarity score
Withheld
Revealed only in play
Tier
Withheld
Find it yourself

OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.

TRIOXYGEN in OUTLIER

Players have found it on 7 boards so far.

Day 1Day 149
Its 7 boards, across 149 finished boards · taller bars are busier boards
7
Boards found on
65
First board
144
Latest board
37
Longest gap, days

It first turned up on Day 65, 24 July 2026. The most recent board was Day 144, 11 October 2026. Nobody has seen it on a board for 5 days.

First found by a player on Day 65, 24 July 2026.

Also on

Built from these letters

TRIOXYGEN
9
Letters
3
Vowels
6
Consonants
9
Different letters
3
Longest consonant run
2
Longest vowel run

TRIOXYGEN starts with T and ends with N. Sorted, its letters read EGINORTXY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram. It uses X - among the least common letters in written English.

Words that start TRIOXY

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found TRIOXYGEN?

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 65 - and most players walked straight past it.

Play today's OUTLIER