The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ISOMER
Definition of ISOMER
noun
Any of two or more compounds with the same molecular formula but with different structure.
Wiktionary · CC BY-SA
Where it comes from
From iso- + -mer.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
Same root, ISOMER · 1 relative 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.
ISOMER in OUTLIER
Players have found it on 49 boards so far. 81 players have found it across Outlier's history.
It first turned up on Day 33, 22 June 2026. The most recent board was Day 150, 17 October 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 33, 22 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ISOMER starts with I and ends with R. Sorted, its letters read EIMORS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
3 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start ISOMER
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 33
Could you have found ISOMER?
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 33 - and most players walked straight past it.
Play today's OUTLIER