The rare daily word game sweeping the globe. Find what's hidden in plain sight.

HYDROTAXIS

10 letters

Definition of HYDROTAXIS

noun

movement (of an organism or organ) in response to water

Wiktionary · CC BY-SA

Where it comes from

From hydro- + taxis.

Etymology via Wiktionary (CC BY-SA).

Word DNA

How it is built

nouncompoundhydro-

The Word DNA of OUTLIER →

Rarity score
Withheld
Revealed only in play
Tier
Withheld
Find it yourself

OUTLIER scores every word on how unusual it is, and that number is not published. Working it out at the board is the game.

HYDROTAXIS in OUTLIER

Players have found it on 15 boards so far. 39 players have found it across Outlier's history.

Day 1Day 159
Its 15 boards, across 159 finished boards · taller bars are busier boards
15
Boards found on
32
First board
157
Latest board
34
Longest gap, days

It first turned up on Day 32, 21 June 2026. The most recent board was Day 157, 24 October 2026. Nobody has seen it on a board for 2 days.

First ever to find it

fenn

on Day 32, 21 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

HYDROTAXIS
10
Letters
3
Vowels
7
Consonants
10
Different letters
4
Longest consonant run
1
Longest vowel run

HYDROTAXIS starts with H and ends with S. Sorted, its letters read ADHIORSTXY - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram. It uses X - among the least common letters in written English.

Words that start HYDROT

Its neighbours in the OUTLIER dictionary - shortest first.

HYDROTAXESHYDROTHECAHYDROTACTICHYDROTHECAEHYDROTHORAXHYDROTROPICHYDROTHERAPYHYDROTHERMALHYDROTROPISMHYDROTHORACESHYDROTHORAXESHYDROTROPISMS

Could you have found HYDROTAXIS?

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 32 - and most players walked straight past it.

Play today's OUTLIER