The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ICOSAHEDRON
Definition of ICOSAHEDRON
noun
A polyhedron with twenty faces.
Wiktionary · CC BY-SA
Where it comes from
From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- English
One recorded step before English.
Deepest traced root
2nd
of 59 source languages in OUTLIER
12.6%
of traced words share this origin (3,789)
branch · 12.6% of traced words
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.
ICOSAHEDRON in OUTLIER
Players have found it on 39 boards so far. 81 players have found it across Outlier's history.
It first turned up on Day 36, 25 June 2026. The most recent board was Day 149, 16 October 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 36, 25 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ICOSAHEDRON starts with I and ends with N. Sorted, its letters read ACDEHINOORS - the shape to hunt for when the grid is scrambled. O appears more than once.
Words that start ICOSAHE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 36
Could you have found ICOSAHEDRON?
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 36 - and most players walked straight past it.
Play today's OUTLIER