The rare daily word game sweeping the globe. Find what's hidden in plain sight.
BIODIESEL
Definition of BIODIESEL
noun
Fuel for diesel engines made from renewable organic raw materials, as opposed to fossil hydrocarbons.
Wiktionary · CC BY-SA
Where it comes from
From bio- + diesel.
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.
BIODIESEL in OUTLIER
Players have found it on 7 boards so far.
It first turned up on Day 42, 1 July 2026. The most recent board was Day 109, 6 September 2026. Nobody has seen it on a board for 3 days.
First ever to find it
on Day 42, 1 July 2026 - before anyone else in Outlier's history. See the Pioneers
Also on
Built from these letters
BIODIESEL starts with B and ends with L. Sorted, its letters read BDEEIILOS - the shape to hunt for when the grid is scrambled. I and E appear more than once.
Words that start BIODIE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 42
Could you have found BIODIESEL?
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 42 - and most players walked straight past it.
Play today's OUTLIER