decagon

D2E1C3A1G2O1N1
US/ˈdɛ.kə.ɡɑn/UK/ˈdɛ.kə.ɡən/

noun

A polygon with ten sides and ten angles.

“Meronyms: angle, side; see also Thesaurus:polygon”

Similar
10-gondecangle
Scrabble 11
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Meanings

noundecagon (plural decagons)

plural decagons

  1. geometryA polygon with ten sides and ten angles.

    Meronyms: angle, side; see also Thesaurus:polygon

    Synonyms: 10-gon, decangle

Synonyms & antonyms

nounA polygon with ten sides and ten angles.

Similar
10-gondecangle
Also see
10-gondecangle

Origin

From deca- + -gon.

Full word history & related roots →

Translations

Ancient Greek δεκάγωνον
  • δεκάγωνον (dekágōnon)polygon with ten sides
Bengali দশভুজ
  • দশভুজ (dośobhuj)polygon with ten sides
Bulgarian десетоъгъ́лник
  • десетоъгъ́лник (desetoăgắlnik)polygon with ten sides
Catalan decàgon
  • decàgonpolygon with ten sides
Chinese Mandarin 十邊形 /十边形
  • 十邊形 /十边形 (shíbiānxíng)polygon with ten sides
Czech desetiúhelník
  • desetiúhelníkpolygon with ten sides
Dutch tienhoek
  • tienhoekpolygon with ten sides
Finnish kymmenkulmio
  • kymmenkulmiopolygon with ten sides
French décagone
  • décagonepolygon with ten sides
German Zehneck
  • Zehneckpolygon with ten sides
Greek δεκάγωνο
  • δεκάγωνο (dekágono)polygon with ten sides
Hindi दशकोण
  • दशकोण (daśkoṇ)polygon with ten sides
Hungarian tízszög
  • tízszögpolygon with ten sides
Icelandic tíhyrningur
  • tíhyrningurpolygon with ten sides
Italian decagono
  • decagonopolygon with ten sides
Japanese 十角形
  • 十角形polygon with ten sides
Korean 십각형
  • 십각형 (sipgakhyeong)polygon with ten sides
Latin decagōnum
  • decagōnumpolygon with ten sides
Malay segi sepuluh, dasakona
  • segi sepuluhpolygon with ten sides
  • dasakonapolygon with ten sides
  • dekagonpolygon with ten sides
Polish dziesięciokąt
  • dziesięciokątpolygon with ten sides
Portuguese decágono
  • decágonopolygon with ten sides
Russian десятиуго́льник, декаго́н
  • десятиуго́льник (desjatiugólʹnik)polygon with ten sides
  • декаго́н (dekagón)polygon with ten sides
Spanish decágono
  • decágonopolygon with ten sides
Tagalog pulsiha, dekagon
  • pulsihapolygon with ten sides
  • dekagonpolygon with ten sides
  • dekagonopolygon with ten sides
Thai สิบเหลี่ยม
  • สิบเหลี่ยม (sìp-lìiam)polygon with ten sides
Ukrainian десятикутник
  • десятикутник (desjatykutnyk)polygon with ten sides
Cite this entry
APA

decagon. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/decagon

MLA

“decagon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/decagon. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “decagon,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/decagon.

Source: decagon on Wiktionary, CC BY-SA 4.0.