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

FLUE

/fluː/4 letters

Definition of FLUE

noun

A pipe or duct that carries gaseous combustion products away from the point of combustion (such as a furnace).

Wiktionary · CC BY-SA

Where it comes from

From Middle English flue, flewe (“mouthpiece of a hunting horn”), of uncertain origin. Perhaps a back-formation from Middle English *flews (mistaken as a plural), from Old English flēwsa (“a flow, flowing, flux”). Alternatively, perhaps an alteration of Middle English floute, fleute, flote (“a pipe”), see English flute. Compare also Middle Dutch vloegh (“groove, channel, flute of a fluted column”).

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.

FLUE in OUTLIER

Players have found it on 43 boards so far. 164 players have found it across Outlier's history.

Day 1Day 109
Its 43 boards, across 109 finished boards · taller bars are busier boards
43
Boards found on
19
First board
109
Latest board
6
Longest gap, days

It first turned up on Day 19, 8 June 2026. The most recent board was Day 109, 6 September 2026. It was on the latest finished board.

First found by a player on Day 19, 8 June 2026.

Built from these letters

FLUE
4
Letters
2
Vowels
2
Consonants
4
Different letters
2
Longest consonant run
2
Longest vowel run

FLUE starts with F and ends with E. 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 FLUE

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found FLUE?

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 19 - and most players walked straight past it.

Play today's OUTLIER

Share FLUE

The OUTLIER card for FLUEDownload image