The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PEROXIDASE
Definition of PEROXIDASE
noun
Any of a class of enzymes that act on substrates such as hydrogen peroxide and organic hydroperoxides such as lipid peroxides.
Wiktionary · CC BY-SA
Where it comes from
From peroxide + -ase.
Etymology via Wiktionary (CC BY-SA).
Word DNA
How it is built
OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.
PEROXIDASE in OUTLIER
Players have found it on 7 boards so far.
It first turned up on Day 67, 26 July 2026. The most recent board was Day 133, 30 September 2026. Nobody has seen it on a board for 16 days.
First ever to find it
on Day 67, 26 July 2026 - before anyone else in Outlier's history. See the Pioneers
Also on
Built from these letters
PEROXIDASE starts with P and ends with E. Sorted, its letters read ADEEIOPRSX - the shape to hunt for when the grid is scrambled. E appears more than once. It uses X - among the least common letters in written English.
Words that start PEROXI
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found PEROXIDASE?
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 67 - and most players walked straight past it.
Play today's OUTLIER