The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ESTRIOL
Definition of ESTRIOL
noun
A relatively weak natural estrogenic hormone that is a glycol C18H24O3 found in the body chiefly as a metabolite of estradiol, is the main estrogen secreted by the placenta during pregnancy, and is the estrogen typically found in the urine of pregnant women.
Wiktionary · CC BY-SA
Where it comes from
Blend of estratriene + triol.
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.
ESTRIOL in OUTLIER
Players have found it on 3 boards so far.
It first turned up on Day 26, 15 June 2026. The most recent board was Day 98, 26 August 2026. Nobody has seen it on a board for 4 days.
First found by a player on Day 26, 15 June 2026.
Built from these letters
ESTRIOL starts with E and ends with L. Sorted, its letters read EILORST - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start ESTRIO
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 26
Could you have found ESTRIOL?
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 26 - and most players walked straight past it.
Play today's OUTLIER