The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SPELUNK
Definition of SPELUNK
noun
A cave, cavern or grotto.
Wiktionary · CC BY-SA
Other senses
SPELUNK carries 2 further meanings.
verb
To explore caves.
verb
explore natural caves
Where it comes from
From Middle English spelunke, from Old French spelonque and/or Latin spelunca, from Ancient Greek σπῆλυγξ (spêlunx, “cave”), related to σπέος (spéos). Cognates include Middle Dutch spelunke, spelonke, German Spelunke.
Etymology via Wiktionary (CC BY-SA).
SPELUNK in a sentence
“From Jordan Scott: “Having stuttered all of my life, blert represents a spelunk into the mouth of the stutterer, a trek across labial regions, a repel through the stalagmites of molars and canines, a lexical navigation into the cavernous poetics of what it means to stutter.””
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
SPELUNK in OUTLIER
Players have found it on 38 boards so far. 149 players have found it across Outlier's history.
It first turned up on Day 19, 8 June 2026. The most recent board was Day 98, 26 August 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 19, 8 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
SPELUNK starts with S and ends with K. Sorted, its letters read EKLNPSU - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Words that start SPELUN
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 19
Could you have found SPELUNK?
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 19 - and most players walked straight past it.
Play today's OUTLIER