The rare daily word game sweeping the globe. Find what's hidden in plain sight.
OESTRUS
Definition of OESTRUS
noun
A biting fly of the genus Oestrus; a botfly.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from Latin oestrus (“gadfly, sting, frenzy”), from Ancient Greek οἶστρος (oîstros), from Proto-Indo-European *h₁eys-, used to form words denoting passion; see also Latin īra (“anger”), Lithuanian aistra (“violent passion”), Avestan 𐬀𐬈𐬯𐬨𐬀 (aesma, “anger”).
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.
OESTRUS in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 118, 15 September 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 118, 15 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
OESTRUS starts with O and ends with S. Sorted, its letters read EORSSTU - the shape to hunt for when the grid is scrambled. S appears more than once.
Same letters, different word
8 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start OESTRU
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found OESTRUS?
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 118 - and most players walked straight past it.
Play today's OUTLIER