The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ENDOCARDIUM
Definition of ENDOCARDIUM
noun
A thin serous membrane that lines the interior of the heart.
Wiktionary · CC BY-SA
Word DNA
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
ENDOCARDIUM in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 141, 8 October 2026. The most recent board was Day 145, 12 October 2026. Nobody has seen it on a board for 8 days.
First ever to find it
on Day 141, 8 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ENDOCARDIUM starts with E and ends with M. Sorted, its letters read ACDDEIMNORU - the shape to hunt for when the grid is scrambled. D appears more than once.
Words that start ENDOCAR
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found ENDOCARDIUM?
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 141 - and most players walked straight past it.
Play today's OUTLIER