The rare daily word game sweeping the globe. Find what's hidden in plain sight.
MASTOIDS
Definition of MASTOIDS
noun
plural of mastoid
adjective
Being the process of the temporal bone behind the ear. Being any of several bony elements that occupy a similar position in the skull of lower vertebrates.
Wiktionary · CC BY-SA
Word DNA
MASTOIDS inherits its ancestry from its root, MASTOID.
Line of descent
- Ancient Greek
- Latin
- English
2 recorded generations before English.
Deepest traced root
3rd
of 59 source languages in OUTLIER
12.4%
of traced words share this origin (10,375)
branch · 12.4% of traced words
How it is built
Same root, MASTOID · 3 relatives in the game
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
MASTOIDS in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 162, 29 October 2026. Nobody has seen it on a board for 8 days.
First ever to find it
on Day 162, 29 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
MASTOIDS starts with M and ends with S. Sorted, its letters read ADIMOSST - the shape to hunt for when the grid is scrambled. S appears more than once.
Words that start MASTOI
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found MASTOIDS?
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 162 - and most players walked straight past it.
Play today's OUTLIER