The rare daily word game sweeping the globe. Find what's hidden in plain sight.

DEUTERIUMS

10 letters

Definition of DEUTERIUMS

noun

plural of deuterium

DEUTERIUM

noun

An isotope of hydrogen with one proton and one neutron in each atom - 21H.

Wiktionary · CC BY-SA

Word DNA

DEUTERIUMS inherits its ancestry from its root, DEUTERIUM.

Line of descent

  1. Ancient Greek
  2. English

One recorded step before English.

Ancient Greek

Deepest traced root

2nd

of 59 source languages in OUTLIER

12.6%

of traced words share this origin (3,706)

Hellenic

branch · 12.6% of traced words

How it is built

nouncompound-ium

Same root, DEUTERIUM · 1 relative in the game

Every Ancient Greek word → · The Word DNA of OUTLIER →

Rarity score
Withheld
Revealed only in play
Tier
Withheld
Find it yourself

OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.

DEUTERIUMS in OUTLIER

Players have found it on 17 boards so far. 31 players have found it across Outlier's history.

Day 1Day 150
Its 17 boards, across 150 finished boards · taller bars are busier boards
17
Boards found on
42
First board
147
Latest board
25
Longest gap, days

It first turned up on Day 42, 1 July 2026. The most recent board was Day 147, 14 October 2026. Nobody has seen it on a board for 3 days.

First ever to find it

velociraptor

on Day 42, 1 July 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

DEUTERIUMS
10
Letters
5
Vowels
5
Consonants
8
Different letters
2
Longest consonant run
2
Longest vowel run

DEUTERIUMS starts with D and ends with S. Sorted, its letters read DEEIMRSTUU - the shape to hunt for when the grid is scrambled. E and U appear more than once.

Words that start DEUTER

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found DEUTERIUMS?

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 42 - and most players walked straight past it.

Play today's OUTLIER