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

SPONGIFORM

10 letters

Definition of SPONGIFORM

adjective

Like a sponge, porous, full of holes.

Wiktionary · CC BY-SA

Where it comes from

Ancient Greek σπόγγος (spóngos, “sponge”) + -iform

Etymology via Wiktionary (CC BY-SA).

Word DNA

Line of descent

  1. Ancient Greek
  2. English

One recorded step before English.

Ancient Greek

Deepest traced root

2nd

of 58 source languages in OUTLIER

12.6%

of traced words share this origin (3,660)

Hellenic

branch · 12.6% of traced words

How it is built

adjectivecompound-iform

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.

SPONGIFORM in OUTLIER

Players have found it on 26 boards so far. 89 players have found it across Outlier's history.

Day 1Day 145
Its 26 boards, across 145 finished boards · taller bars are busier boards
26
Boards found on
25
First board
143
Latest board
11
Longest gap, days

It first turned up on Day 25, 14 June 2026. The most recent board was Day 143, 10 October 2026. Nobody has seen it on a board for 2 days.

First ever to find it

robanybody

on Day 25, 14 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

SPONGIFORM
10
Letters
3
Vowels
7
Consonants
9
Different letters
2
Longest consonant run
1
Longest vowel run

SPONGIFORM starts with S and ends with M. Sorted, its letters read FGIMNOOPRS - the shape to hunt for when the grid is scrambled. O appears more than once.

Words that start SPONGI

Its neighbours in the OUTLIER dictionary - shortest first.

SPONGINSPONGIERSPONGILYSPONGINGSPONGINSSPONGIESTSPONGIOSESPONGIOUSSPONGINESSSPONGINESSES

Could you have found SPONGIFORM?

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 25 - and most players walked straight past it.

Play today's OUTLIER