The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SINKHOLE
Definition of SINKHOLE
noun
A hole formed in soluble rock by the action of water, serving to conduct surface water to an underground passage.
Wiktionary · CC BY-SA
Where it comes from
From Middle English sinkehole, sinkeholl, equivalent to sink + hole.
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.
SINKHOLE in OUTLIER
Players have found it on 17 boards so far. 33 players have found it across Outlier's history.
It first turned up on Day 35, 24 June 2026. The most recent board was Day 110, 7 September 2026. Nobody has seen it on a board for 1 day.
First ever to find it
on Day 35, 24 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
SINKHOLE starts with S and ends with E. Sorted, its letters read EHIKLNOS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start SINKHO
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 35
Could you have found SINKHOLE?
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 35 - and most players walked straight past it.
Play today's OUTLIER