The rare daily word game sweeping the globe. Find what's hidden in plain sight.
SPHENOID
Definition of SPHENOID
adjective
Having a wedge shape.
Wiktionary · CC BY-SA
Where it comes from
From New Latin sphenoides, from Ancient Greek σφηνοειδής (sphēnoeidḗs, “wedge-shaped”), from σφήν (sphḗn, “wedge”) + -ειδής (-eidḗs, “-form, -like”).
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.
SPHENOID in OUTLIER
Players have found it on 25 boards so far. 31 players have found it across Outlier's history.
It first turned up on Day 26, 15 June 2026. The most recent board was Day 96, 24 August 2026. It was on the latest finished board.
First found by a player on Day 26, 15 June 2026.
Built from these letters
SPHENOID starts with S and ends with D. Sorted, its letters read DEHINOPS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start SPHENO
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 26
Could you have found SPHENOID?
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 26 - and most players walked straight past it.
Play today's OUTLIER