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

PROPANOIC

9 letters

Definition of PROPANOIC

adjective

Of or pertaining to propanoic acid or its derivatives; propionic

Wiktionary · CC BY-SA

Where it comes from

From propane + -oic.

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.

PROPANOIC in OUTLIER

Players have found it on 1 board so far.

Day 1Day 120
Its one board, across 120 finished boards · taller bars are busier boards
1
Boards found on
110
First board
10
Days since seen

It first turned up on Day 110, 7 September 2026. Nobody has seen it on a board for 10 days.

First ever to find it

freneticwriting

on Day 110, 7 September 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

PROPANOIC
9
Letters
4
Vowels
5
Consonants
7
Different letters
2
Longest consonant run
2
Longest vowel run

PROPANOIC starts with P and ends with C. Sorted, its letters read ACINOOPPR - the shape to hunt for when the grid is scrambled. P and O appear more than once.

Words that start PROPAN

Its neighbours in the OUTLIER dictionary - shortest first.

PROPANEPROPANESPROPANOLPROPANOLSPROPANONEPROPANONES

Could you have found PROPANOIC?

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 110 - and most players walked straight past it.

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