The rare daily word game sweeping the globe. Find what's hidden in plain sight.
TRIHALOMETHANE
Definition of TRIHALOMETHANE
noun
Any of many halogenated derivatives of methane containing three (not always the same) halogen atoms; many are environmental pollutants
Wiktionary · CC BY-SA
Where it comes from
From tri- + halomethane.
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.
TRIHALOMETHANE in OUTLIER
Players have found it on 1 board so far.
It first turned up on Day 137, 4 October 2026. It was on the latest finished board.
First ever to find it
on Day 137, 4 October 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
TRIHALOMETHANE starts with T and ends with E. Sorted, its letters read AAEEHHILMNORTT - the shape to hunt for when the grid is scrambled. T, H, A and E appear more than once.
Words that start TRIHALOMET
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found TRIHALOMETHANE?
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 137 - and most players walked straight past it.
Play today's OUTLIER