The rare daily word game sweeping the globe. Find what's hidden in plain sight.
MUSTACHIO
Definition of MUSTACHIO
noun
A mustache, especially a large or lush one.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from the Italian dialectal mustaccio (from Neapolitan) or mustacchio, ultimately from Ancient Greek.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- Italian
- English
2 recorded generations before English.
Deepest traced root
2nd
of 59 source languages in OUTLIER
12.6%
of traced words share this origin (3,724)
branch · 12.6% of traced words
How it is built
Same root, MUSTACHIO · 2 relatives 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.
MUSTACHIO in OUTLIER
Players have found it on 16 boards so far. 23 players have found it across Outlier's history.
It first turned up on Day 72, 31 July 2026. The most recent board was Day 145, 12 October 2026. Nobody has seen it on a board for 5 days.
First ever to find it
on Day 87, 15 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
MUSTACHIO starts with M and ends with O. Sorted, its letters read ACHIMOSTU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start MUSTAC
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found MUSTACHIO?
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 72 - and most players walked straight past it.
Play today's OUTLIER