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

HELIOMETER

10 letters

Definition of HELIOMETER

noun

An astronomical instrument, based on a telescope, for measuring the diameter of the sun; now used to measure the angular distance between stars and other celestial bodies.

Wiktionary · CC BY-SA

Where it comes from

From helio- + -meter, from Ancient Greek Ἥλιος (Hḗlios), from ἥλιος (hḗlios, “sun”), and French mètre, from Ancient Greek μέτρον (métron, “measure”).

Etymology via Wiktionary (CC BY-SA).

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.

HELIOMETER in OUTLIER

Players have found it on 1 board so far.

Day 1Day 119
Its one board, across 119 finished boards · taller bars are busier boards
1
Boards found on
113
First board
6
Days since seen

It first turned up on Day 113, 10 September 2026. Nobody has seen it on a board for 6 days.

First ever to find it

ultacrepidarian

on Day 113, 10 September 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

HELIOMETER
10
Letters
5
Vowels
5
Consonants
8
Different letters
1
Longest consonant run
2
Longest vowel run

HELIOMETER starts with H and ends with R. Sorted, its letters read EEEHILMORT - the shape to hunt for when the grid is scrambled. E appears more than once.

Words that start HELIOM

Its neighbours in the OUTLIER dictionary - shortest first.

HELIOMETRYHELIOMETERSHELIOMETRICHELIOMETRICALLY

Could you have found HELIOMETER?

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 113 - and most players walked straight past it.

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