The rare daily word game sweeping the globe. Find what's hidden in plain sight.
HELIOTAXIS
Definition of HELIOTAXIS
noun
Phototaxis related to the sun. Movement of an organism toward sunlight; positive heliotaxis. Movement of an organism away from sunlight; negative heliotaxis.
Wiktionary · CC BY-SA
Where it comes from
From helio- + taxis.
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.
HELIOTAXIS in OUTLIER
Players have found it on 6 boards so far. 10 players have found it across Outlier's history.
It first turned up on Day 73, 1 August 2026. The most recent board was Day 129, 26 September 2026. Nobody has seen it on a board for 19 days.
First ever to find it
on Day 73, 1 August 2026 - before anyone else in Outlier's history. See the Pioneers
Built from these letters
HELIOTAXIS starts with H and ends with S. Sorted, its letters read AEHIILOSTX - the shape to hunt for when the grid is scrambled. I appears more than once. It uses X - among the least common letters in written English.
Words that start HELIOT
Its neighbours in the OUTLIER dictionary - shortest first.
Could you have found HELIOTAXIS?
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 73 - and most players walked straight past it.
Play today's OUTLIER