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

COSMONAUT

/ˈkɒz.məˌnɔːt/9 letters

Definition of COSMONAUT

noun

An astronaut, especially a Russian or Soviet one.

Wiktionary · CC BY-SA

Where it comes from

Borrowed from Russian космона́вт (kosmonávt), from Ancient Greek κόσμος (kósmos, “universe”) + ναύτης (naútēs, “sailor”). By surface analysis, cosmo- + -naut.

Etymology via Wiktionary (CC BY-SA).

Word DNA

Line of descent

  1. Ancient Greek
  2. Russian
  3. English

2 recorded generations before English.

Ancient Greek

Deepest traced root

2nd

of 58 source languages in OUTLIER

12.6%

of traced words share this origin (3,577)

Hellenic

branch · 12.6% of traced words

How it is built

noun3 syllablescompound-nautcosmo-

Every Ancient Greek word → · 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.

COSMONAUT in OUTLIER

Players have found it on 32 boards so far. 97 players have found it across Outlier's history.

Day 1Day 140
Its 32 boards, across 140 finished boards · taller bars are busier boards
32
Boards found on
31
First board
136
Latest board
12
Longest gap, days

It first turned up on Day 31, 20 June 2026. The most recent board was Day 136, 3 October 2026. Nobody has seen it on a board for 4 days.

First ever to find it

lucasthornsy

on Day 31, 20 June 2026 - before anyone else in Outlier's history. See the Pioneers

Built from these letters

COSMONAUT
9
Letters
4
Vowels
5
Consonants
8
Different letters
2
Longest consonant run
2
Longest vowel run

COSMONAUT starts with C and ends with T. Sorted, its letters read ACMNOOSTU - the shape to hunt for when the grid is scrambled. O appears more than once.

Words that start COSMON

Its neighbours in the OUTLIER dictionary - shortest first.

COSMONAUTS

Could you have found COSMONAUT?

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 31 - and most players walked straight past it.

Play today's OUTLIER