The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HYDROSPACE
Definition of HYDROSPACE
noun
That part of the Earth, or other planet, that lies below the surface of its lakes, seas and oceans,
Wiktionary · CC BY-SA
Where it comes from
From hydro- + space.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
HYDROSPACE in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 72, 31 July 2026. The most recent board was Day 128, 25 September 2026. It was on the latest finished board.
First ever to find it
on Day 128, 25 September 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
HYDROSPACE starts with H and ends with E. Sorted, its letters read ACDEHOPRSY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start HYDROS
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found HYDROSPACE?
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