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

MOUSE

/maʊs/5 letters

Definition of MOUSE

noun

Any mammal of the many rodent families (especially Muridae) that have a small body and a long tail.

Wiktionary · CC BY-SA

Where it comes from

Inherited from Middle English mous, from Old English mūs, from Proto-West Germanic *mūs, from Proto-Germanic *mūs, from Proto-Indo-European *múHs. Germanic cognates include Old Frisian mūs, Old Saxon mūs (German Low German Muus), Dutch muis, Old High German mūs (German Maus), Old Norse mús (Danish, Norwegian Bokmål, Norwegian Nynorsk, and Swedish mus, Faroese and Icelandic mús). Indo-European cognates include Ancient Greek μῦς (mûs), Latin mūs, Spanish mur, Armenian մուկ (muk), Old Church Slavonic мꙑшь (myšĭ) (Russian мышь (myšʹ)), Albanian mi, Persian موش (muš), Northern Kurdish mişk, Sanskrit मूष् (mūṣ). The computing sense was coined by American engineer Bill English in 1965 and first used publicly in a publication titled "Computer-Aided Display Control", in reference to the similarity with the animal.

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.

MOUSE in OUTLIER

Players have found it on 22 boards so far. 46 players have found it across Outlier's history.

Day 1Day 102
Its 22 boards, across 102 finished boards · taller bars are busier boards
22
Boards found on
8
First board
101
Latest board
28
Longest gap, days

It first turned up on Day 8, 29 May 2026. The most recent board was Day 101, 29 August 2026. Nobody has seen it on a board for 1 day.

First found by a player on Day 8, 29 May 2026.

Built from these letters

MOUSE
5
Letters
3
Vowels
2
Consonants
5
Different letters
1
Longest consonant run
2
Longest vowel run

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

Same letters, different word

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

Words that start MOUSE

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found MOUSE?

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 8 - and most players walked straight past it.

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The OUTLIER card for MOUSEDownload image