The rare daily word game sweeping the globe. Find what's hidden in plain sight.
BIACETYLS
Definition of BIACETYLS
Wiktionary has no entry for BIACETYLS itself. This is its base word, BIACETYL.
noun
diacetyl
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.
BIACETYLS in OUTLIER
Players have found it on 2 boards so far.
It first turned up on Day 72, 31 July 2026. The most recent board was Day 89, 17 August 2026. Nobody has seen it on a board for 30 days.
First ever to find it
on Day 89, 17 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
BIACETYLS starts with B and ends with S. Sorted, its letters read ABCEILSTY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
Could you have found BIACETYLS?
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 72 - and most players walked straight past it.
Play today's OUTLIER