The rare daily word game sweeping the globe. Find what's hidden in plain sight.
RIBOFLAVIN
Definition of 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
Where it comes from
From ribo(se)- + flavin.
Etymology via Wiktionary (CC BY-SA).
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
RIBOFLAVIN in OUTLIER
Players have found it on 14 boards so far. 38 players have found it across Outlier's history.
It first turned up on Day 23, 12 June 2026. The most recent board was Day 100, 28 August 2026. Nobody has seen it on a board for 2 days.
First found by a player on Day 23, 12 June 2026.
Built from these letters
RIBOFLAVIN starts with R and ends with N. Sorted, its letters read ABFIILNORV - the shape to hunt for when the grid is scrambled. I appears more than once.
Words that start RIBOFL
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 23
Could you have found RIBOFLAVIN?
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 23 - and most players walked straight past it.
Play today's OUTLIER