The rare daily word game sweeping the globe. Find what's hidden in plain sight.
BIOTIN
Definition of BIOTIN
noun
A sulfur-containing member of the vitamin B complex, 5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid, found in liver, egg yolk, milk, and yeast, essential to the activity of multiple enzyme systems.
Wiktionary · CC BY-SA
Where it comes from
Borrowed from German Biotin, from Ancient Greek βίοτος (bíotos, “life”) + the suffix -in.
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.
BIOTIN in OUTLIER
Players have found it on 8 boards so far. 23 players have found it across Outlier's history.
It first turned up on Day 29, 18 June 2026. The most recent board was Day 109, 6 September 2026. Nobody has seen it on a board for 2 days.
First ever to find it
on Day 29, 18 June 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
BIOTIN starts with B and ends with N. Sorted, its letters read BIINOT - the shape to hunt for when the grid is scrambled. I appears more than once.
Also seen on Day 29
Could you have found BIOTIN?
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 29 - and most players walked straight past it.
Play today's OUTLIER