adj · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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ŏk-tăgʹə-nl
/ɑkˈtæɡənəl/
Canada:Recorded audio is listed in the source snapshot.
rhymes with -æɡənəl
CMU ARPABET:AA0 K T AE1 G AH0 N AH0 L
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Shaped like an octagon, in having eight sides and eight angles.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
Topics: geometry, mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adjective
Meaning 2
of or relating to or shaped like an octagon
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: octangular
Antonyms: none provided
History
Etymology
From octagon + -al.
Across languages
Translations
38 source translations are retained for this English entry.
Bengali:
অষ্টভুজাকৃতি
(ośṭobhujakriti)
— shaped like an octagon
Bulgarian:
осмоъгълен
(osmoǎgǎlen)
— shaped like an octagon
Catalan:
octagonal
— shaped like an octagon
Danish:
ottekantet
— shaped like an octagon
Danish:
oktagonal
— shaped like an octagon
Danish:
oktogonal
— shaped like an octagon
Dutch:
achthoekig
— shaped like an octagon
Esperanto:
oklatera
— shaped like an octagon
Esperanto:
okangula
— shaped like an octagon
Finnish:
kahdeksankulmioinen
— shaped like an octagon
Finnish:
kahdeksankulmion muotoinen
— shaped like an octagon
French:
octogonal
— shaped like an octagon
Galician:
octogonal
— shaped like an octagon
Georgian:
რვაკუთხა
(rvaḳutxa)
— shaped like an octagon
Georgian:
ოქტაგონალური
(okṭagonaluri)
— shaped like an octagon
German:
oktagonal
— shaped like an octagon
German:
achteckig
— shaped like an octagon
Greek:
οκτάγωνος
(oktágonos)
— shaped like an octagon
Greek:
οχτάγωνος
(ochtágonos)
— shaped like an octagon
Icelandic:
átthyrndur
— shaped like an octagon
Irish:
ochtagánach
— shaped like an octagon
Italian:
ottagonale
— shaped like an octagon
Old English:
eahtahyrnede
— shaped like an octagon
Polish:
ośmiokątny
— shaped like an octagon
Polish:
oktagonalny
— shaped like an octagon
Portuguese:
octogonal
— shaped like an octagon
Portuguese:
octagonal
— shaped like an octagon
Russian:
восьмиуго́льный
(vosʹmiugólʹnyj)
— shaped like an octagon
Scottish Gaelic:
ochd-shliosach
— shaped like an octagon
Scottish Gaelic:
ochd-shlisneach
— shaped like an octagon
Spanish:
octagonal
— shaped like an octagon
Spanish:
octógono
— shaped like an octagon
Swedish:
oktagonal
— shaped like an octagon
Swedish:
åttakantig
— shaped like an octagon
Swedish:
åttasidig
— shaped like an octagon
Swedish:
oktogonal
— shaped like an octagon
Tagalog:
walsihain
— shaped like an octagon
Ukrainian:
восьмику́тний
(vosʹmykútnyj)
— shaped like an octagon