The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ARGINASE
Definition of ARGINASE
noun
An enzyme that catalyses the hydrolysis of arginine to form urea and ornithine
Wiktionary · CC BY-SA
Where it comes from
From arginine + -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.
ARGINASE in OUTLIER
Players have found it on 6 boards so far.
It first turned up on Day 100, 28 August 2026. The most recent board was Day 134, 1 October 2026. Nobody has seen it on a board for 18 days.
First ever to find it
on Day 100, 28 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ARGINASE starts with A and ends with E. Sorted, its letters read AAEGINRS - the shape to hunt for when the grid is scrambled. A appears more than once.
Same letters, different word
2 other words use exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.
Words that start ARGINA
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found ARGINASE?
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 100 - and most players walked straight past it.
Play today's OUTLIER