The rare daily word game sweeping the globe. Find what's hidden in plain sight.
OESTRIOL
Definition of OESTRIOL
noun
Alternative spelling of estriol.
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.
OESTRIOL in OUTLIER
Players have found it on 3 boards so far.
It first turned up on Day 66, 25 July 2026. The most recent board was Day 72, 31 July 2026. Nobody has seen it on a board for 23 days.
First ever to find it
on Day 66, 25 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
OESTRIOL starts with O and ends with L. Sorted, its letters read EILOORST - the shape to hunt for when the grid is scrambled. O 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 OESTRI
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found OESTRIOL?
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 66 - and most players walked straight past it.
Play today's OUTLIER