The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HYPOGEUM
Definition of HYPOGEUM
noun
An underground room or cavern .
Wiktionary · CC BY-SA
Where it comes from
From Latin hypogaeum, from Ancient Greek ὑπόγειον (hupógeion), a noun use of the neuter singular of ὑπόγειος (hupógeios, “underground”).
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.
HYPOGEUM in OUTLIER
Players have found it on 20 boards so far. 24 players have found it across Outlier's history.
It first turned up on Day 12, 1 June 2026. The most recent board was Day 108, 5 September 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 12, 1 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
HYPOGEUM starts with H and ends with M. Sorted, its letters read EGHMOPUY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start HYPOGE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 12
Could you have found HYPOGEUM?
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 12 - and most players walked straight past it.
Play today's OUTLIER