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

BERKELIUMS

/bɜːɹˈkiːliəm/10 letters

Definition of BERKELIUMS

Wiktionary has no entry for BERKELIUMS itself. This is its base word, BERKELIUM.

noun

A transuranic chemical element (symbol Bk) with an atomic number of 97. An atom of this element.

Wiktionary · CC BY-SA

Where it comes from

The origin recorded for BERKELIUM.

After Berkeley, California, because of discovery at UC Berkeley, + -ium.

Etymology via Wiktionary (CC BY-SA).

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.

BERKELIUMS in OUTLIER

Players have found it on 6 boards so far.

Day 1Day 102
Its 6 boards, across 102 finished boards · taller bars are busier boards
6
Boards found on
61
First board
97
Latest board
18
Longest gap, days

It first turned up on Day 61, 20 July 2026. The most recent board was Day 97, 25 August 2026. Nobody has seen it on a board for 5 days.

First ever to find it

phippino

on Day 61, 20 July 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

BERKELIUMS
10
Letters
4
Vowels
6
Consonants
9
Different letters
2
Longest consonant run
2
Longest vowel run

BERKELIUMS starts with B and ends with S. Sorted, its letters read BEEIKLMRSU - the shape to hunt for when the grid is scrambled. E appears more than once.

Words that start BERKEL

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found BERKELIUMS?

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 61 - and most players walked straight past it.

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