The rare daily word game sweeping the globe. Find what's hidden in plain sight.
OPERCULES
Definition of OPERCULES
noun
plural of opercule
OPERCULUM · via opercule
noun
A covering flap in animals and insects, such as a gill cover or the lid of nits.
Wiktionary · CC BY-SA
Word DNA
How it is built
Same root, OPERCULE · 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.
OPERCULES in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 128, 25 September 2026. It was on the latest finished board.
First ever to find it
on Day 128, 25 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
OPERCULES starts with O and ends with S. Sorted, its letters read CEELOPRSU - the shape to hunt for when the grid is scrambled. E appears more than once.
Same letters, different word
One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start OPERCU
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found OPERCULES?
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 128 - and most players walked straight past it.
Play today's OUTLIER