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

COAL

/kəʊl/4 letters

Definition of COAL

noun

A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.

Wiktionary · CC BY-SA

Where it comes from

From Middle English col, from Old English col, from Proto-West Germanic *kol, from Proto-Germanic *kulą (“coal”), from Proto-Indo-European *ǵwelH- (“to burn, shine”). Cognate with North Frisian kööl (“coal”), Saterland Frisian Koole (“coal”), West Frisian koal (“coal”), Cimbrian kholl (“coal”), Dutch kool (“coal; carbon”), German Kohle (“coal”), Limburgish Kǫe̩l (“coal”), Luxembourgish Kuel (“coal”), Vilamovian köła (“coal”), Yiddish קויל (koyl, “coal”), Danish kul (“coal”), Faroese, Icelandic, Norwegian Nynorsk, and Swedish kol (“coal; carbon”), Jamtish kuł (“coal; carbon”), Norwegian Bokmål kol, kull (“coal”). Compare Irish and Scottish Gaelic gual (“coal”), Manx geayl (“coal”), Lithuanian žvi̇̀lti (“to glow, twinkle”), Persian زکال (zakâl), زکار (zekâr), زغال (zoġâl, “coal”), Tocharian B śoliye (“hearth”), Sanskrit ज्वल् (jval, “to burn, glow”), all from the same root.

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.

COAL in OUTLIER

Players have found it on 9 boards so far.

Day 1Day 112
Its 9 boards, across 112 finished boards · taller bars are busier boards
9
Boards found on
7
First board
105
Latest board
28
Longest gap, days

It first turned up on Day 7, 28 May 2026. The most recent board was Day 105, 2 September 2026. Nobody has seen it on a board for 7 days.

First found by a player on Day 7, 28 May 2026.

Also on

Built from these letters

COAL
4
Letters
2
Vowels
2
Consonants
4
Different letters
1
Longest consonant run
2
Longest vowel run

COAL starts with C and ends with L. Sorted, its letters read ACLO - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Same letters, different word

4 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.

Words that start COAL

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found COAL?

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 7 - and most players walked straight past it.

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