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DECAGON

/ˈdɛ.kə.ɡɑn/7 letters

Definition of DECAGON

noun

A polygon with ten sides and ten angles.

Wiktionary · CC BY-SA

Other senses

DECAGON carries 3 further meanings.

  1. noun

    In geometry, a plane figure having ten sides and ten angles. When all the sides and angles are equal, it is a regular decagon.

  2. noun

    A plane figure having ten sides and ten angles; any figure having ten angles. A regular decagon is one that has all its sides and angles equal.

  3. noun

    a polygon with 10 sides and 10 angles

Where it comes from

From deca- + -gon.

Etymology via Wiktionary (CC BY-SA).

Word DNA

How it is built

noun3 syllablescompound-gondeca-

Same root, DECAGON · 1 relative in the game

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.

DECAGON in OUTLIER

Players have found it on 59 boards so far. 125 players have found it across Outlier's history.

Day 1Day 149
Its 59 boards, across 149 finished boards · taller bars are busier boards
59
Boards found on
9
First board
149
Latest board
17
Longest gap, days

It first turned up on Day 9, 29 May 2026. The most recent board was Day 149, 16 October 2026. It was on the latest finished board.

First found by a player on Day 9, 29 May 2026.

Built from these letters

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

DECAGON starts with D and ends with N. Sorted, its letters read ACDEGNO - the shape to hunt for when the grid is scrambled. No letter is used twice, which makes it an isogram.

Same letters, different word

One other word uses exactly these letters. Worth knowing at the board: an anagram fits a grid the same way.

Words that start DECAGO

Its neighbours in the OUTLIER dictionary - shortest first.

Could you have found DECAGON?

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 9 - and most players walked straight past it.

Play today's OUTLIER

from The American Heritage® Dictionary of the English Language, 5th Edition.

from The Century Dictionary.

from the GNU version of the Collaborative International Dictionary of English.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

Senses and citation via Wordnik.