The rare daily word game sweeping the globe. Find what's hidden in plain sight.
MOUSER
Definition of MOUSER
noun
A cat that catches mice, kept specifically for the purpose.
Wiktionary · CC BY-SA
Where it comes from
From Middle English mousere (“a hunter of mice”), equivalent to mouse + -er (agent noun suffix) or + -er (occupational suffix). The “moustache” sense is apparently an extended usage (i.e., a cat’s whiskers, jocularly transferred to human beings), possibly with influence from moustache.
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
MOUSER in OUTLIER
Players have found it on 27 boards so far. 42 players have found it across Outlier's history.
It first turned up on Day 7, 28 May 2026. The most recent board was Day 102, 30 August 2026. It was on the latest finished board.
First ever to find it
on Day 15, 4 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
MOUSER starts with M and ends with R. Sorted, its letters read EMORSU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start MOUSER
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 7
Could you have found MOUSER?
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.
Play today's OUTLIER