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

BIPHENOLS

9 letters

Definition of BIPHENOLS

noun

plural of biphenol

BIPHENOL

noun

Any compound that has two phenolic hydroxy groups; such a phenolic derivative of biphenyl

Wiktionary · CC BY-SA

Word DNA

BIPHENOLS inherits its ancestry from its root, BIPHENOL.

How it is built

nouncompoundbi-

Same root, BIPHENOL · 1 relative in the game

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.

BIPHENOLS in OUTLIER

Players have found it on 5 boards so far.

Day 1Day 164
Its 5 boards, across 164 finished boards · taller bars are busier boards
5
Boards found on
142
First board
163
Latest board
9
Longest gap, days

It first turned up on Day 142, 9 October 2026. The most recent board was Day 163, 30 October 2026. Nobody has seen it on a board for 1 day.

First ever to find it

ladylark

on Day 142, 9 October 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

BIPHENOLS
9
Letters
3
Vowels
6
Consonants
9
Different letters
2
Longest consonant run
1
Longest vowel run

BIPHENOLS starts with B and ends with S. Sorted, its letters read BEHILNOPS - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

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 BIPHEN

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found BIPHENOLS?

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 142 - and most players walked straight past it.

Play today's OUTLIER