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

SILICA

/ˈsɪl.ɪ.kə/6 letters

Definition of SILICA

noun

Silicon dioxide.

Wiktionary · CC BY-SA

Where it comes from

From New Latin silica, from Latin silex (“hard stone, flint”), on model of alumina, soda.

Etymology via Wiktionary (CC BY-SA).

Word DNA

Line of descent

  1. Latin
  2. English

One recorded step before English.

Latin

Deepest traced root

1st

of 59 source languages in OUTLIER

30.7%

of traced words share this origin (24,176)

Italic

branch · 30.7% of traced words

How it is built

noun3 syllables

Same root, SILICA · 1 relative in the game

Every Latin 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.

SILICA in OUTLIER

Players have found it on 28 boards so far. 67 players have found it across Outlier's history.

Day 1Day 159
Its 28 boards, across 159 finished boards · taller bars are busier boards
28
Boards found on
30
First board
155
Latest board
14
Longest gap, days

It first turned up on Day 30, 19 June 2026. The most recent board was Day 155, 22 October 2026. Nobody has seen it on a board for 4 days.

First ever to find it

xcross

on Day 30, 19 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

SILICA
6
Letters
3
Vowels
3
Consonants
5
Different letters
1
Longest consonant run
1
Longest vowel run

SILICA starts with S and ends with A. Sorted, its letters read ACIILS - the shape to hunt for when the grid is scrambled. I appears more than once.

Same letters, different word

One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.

Words that start SILICA

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found SILICA?

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 30 - and most players walked straight past it.

Play today's OUTLIER