The rare daily word game sweeping the globe. Find what's hidden in plain sight.
OSTIARY
Definition of OSTIARY
noun
The mouth of a river; an estuary.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from Latin ostiārius, from ostium (“door, entrance”). See usher, which may be a doublet.
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.
OSTIARY in OUTLIER
Players have found it on 4 boards so far.
It first turned up on Day 72, 31 July 2026. The most recent board was Day 101, 29 August 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 99, 27 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
OSTIARY starts with O and ends with Y. Sorted, its letters read AIORSTY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start OSTIAR
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found OSTIARY?
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 72 - and most players walked straight past it.
Play today's OUTLIER