The rare daily word game sweeping the globe. Find what's hidden in plain sight.
DIFFUSION
Definition of DIFFUSION
noun
The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from Latin diffūsiō, from diffundō; can be decomposed as diffuse + -ion.
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Latin
- English
One recorded step before English.
Deepest traced root
1st
of 59 source languages in OUTLIER
32.5%
of traced words share this origin (8,667)
branch · 32.5% 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.
DIFFUSION in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 134, 1 October 2026. It was on the latest finished board.
First ever to find it
on Day 134, 1 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
DIFFUSION starts with D and ends with N. Sorted, its letters read DFFIINOSU - the shape to hunt for when the grid is scrambled. I and F appear more than once, including a double letter.
Words that start DIFFUS
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found DIFFUSION?
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 134 - and most players walked straight past it.
Play today's OUTLIER