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

RIBOFLAVINS

11 letters

Definition of RIBOFLAVINS

noun

plural of riboflavin

RIBOFLAVIN

noun

Yellow or orange-yellow water-soluble compound, a member of the vitamin B complex, that acts as a growth-promoting factor in humans and other animals.

Wiktionary · CC BY-SA

Word DNA

RIBOFLAVINS inherits its ancestry from its root, RIBOFLAVIN.

How it is built

nouncompound

Same root, RIBOFLAVIN · 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.

RIBOFLAVINS in OUTLIER

Players have found it on 27 boards so far. 49 players have found it across Outlier's history.

Day 1Day 150
Its 27 boards, across 150 finished boards · taller bars are busier boards
27
Boards found on
28
First board
150
Latest board
15
Longest gap, days

It first turned up on Day 28, 17 June 2026. The most recent board was Day 150, 17 October 2026. It was on the latest finished board.

First ever to find it

mfhillman

on Day 28, 17 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

RIBOFLAVINS
11
Letters
4
Vowels
7
Consonants
10
Different letters
2
Longest consonant run
1
Longest vowel run

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

Words that start RIBOFLA

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found RIBOFLAVINS?

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 28 - and most players walked straight past it.

Play today's OUTLIER