The rare daily word game sweeping the globe. Find what's hidden in plain sight.
PHOSPHINE
Definition of PHOSPHINE
noun
A toxic gas, chemical formula PH3.
Wiktionary · CC BY-SA
Where it comes from
From phosph- + -ine.
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.
PHOSPHINE in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 151, 18 October 2026. Nobody has seen it on a board for 14 days.
First ever to find it
on Day 151, 18 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
PHOSPHINE starts with P and ends with E. Sorted, its letters read EHHINOPPS - the shape to hunt for when the grid is scrambled. P and H appear more than once.
Words that start PHOSPH
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found PHOSPHINE?
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 151 - and most players walked straight past it.
Play today's OUTLIER