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

OCTANE

/ˈɒkteɪn/6 letters

Definition of OCTANE

noun

Any of the eighteen isomeric aliphatic hydrocarbons (C8H18) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents.

Wiktionary · CC BY-SA

Where it comes from

From oct- + -ane.

Etymology via Wiktionary (CC BY-SA).

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.

OCTANE in OUTLIER

Players have found it on 11 boards so far. 13 players have found it across Outlier's history.

Day 1Day 102
Its 11 boards, across 102 finished boards · taller bars are busier boards
11
Boards found on
15
First board
102
Latest board
33
Longest gap, days

It first turned up on Day 15, 4 June 2026. The most recent board was Day 102, 30 August 2026. It was on the latest finished board.

First ever to find it

ktden

on Day 15, 4 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

OCTANE
6
Letters
3
Vowels
3
Consonants
6
Different letters
2
Longest consonant run
1
Longest vowel run

OCTANE starts with O and ends with E. Sorted, its letters read ACENOT - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Words that start OCTANE

Its neighbours in the OUTLIER dictionary - shortest first.

OCTANESOCTANEDIOIC

Could you have found OCTANE?

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 15 - and most players walked straight past it.

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The OUTLIER card for OCTANEDownload image