The rare daily word game sweeping the globe. Find what's hidden in plain sight.
ISOPLETH
Definition of ISOPLETH
noun
A line drawn on a map through all points having the same value of some measurable quantity.
Wiktionary · CC BY-SA
Where it comes from
From iso- + Ancient Greek πλῆθος (plêthos, “a great number”).
Etymology via Wiktionary (CC BY-SA).
Word DNA
Line of descent
- Ancient Greek
- English
One recorded step before English.
Deepest traced root
2nd
of 59 source languages in OUTLIER
12.6%
of traced words share this origin (3,789)
branch · 12.6% of traced words
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.
ISOPLETH in OUTLIER
Players have found it on 14 boards so far. 11 players have found it across Outlier's history.
It first turned up on Day 54, 13 July 2026. The most recent board was Day 136, 3 October 2026. Nobody has seen it on a board for 17 days.
First ever to find it
on Day 54, 13 July 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
ISOPLETH starts with I and ends with H. Sorted, its letters read EHILOPST - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.
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 ISOPLE
Its neighbours in the OUTLIER dictionary - shortest first.
Also seen on Day 54
Could you have found ISOPLETH?
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 54 - and most players walked straight past it.
Play today's OUTLIER