The rare daily word game sweeping the globe. Find what's hidden in plain sight.
STROMATOLITE
Definition of STROMATOLITE
noun
A laminated, columnar, rock-like structure constituting a large share of all fossils from 3.5 to 0.5 billion years ago, with some still being formed at present, some or all of which result from the deposit of minerals by microorganisms such as cyanobacteria.
Wiktionary · CC BY-SA
Where it comes from
From Ancient Greek στρώματα (strṓmata) (plural of στρῶμα (strôma, “layer”)) + λίθος (líthos, “stone, rock”).
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.
STROMATOLITE in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 106, 3 September 2026. Nobody has seen it on a board for 5 days.
First ever to find it
on Day 106, 3 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
STROMATOLITE starts with S and ends with E. Sorted, its letters read AEILMOORSTTT - the shape to hunt for when the grid is scrambled. T and O appear more than once.
Words that start STROMATO
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found STROMATOLITE?
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 106 - and most players walked straight past it.
Play today's OUTLIER