Subscriber login


Forgot your password?

Library card login

Other

octagon

Pronunciation: /ˈɒktəg(ə)n/
Translate octagon | into French | into German | into Italian | into Spanish
Definition of octagon

noun

  • a plane figure with eight straight sides and eight angles.
  • an object or building with an octagonal plan or cross section.

Derivatives

octagonal

Pronunciation: /-ˈtag(ə)n(ə)l/
adjective

Origin:

late 16th century: via Latin from Greek octagōnos 'eight-angled'

Spelling help

Remember that octagon has an a after the t.

octagon in other Oxford dictionaries

Definition of octagon in the US English dictionary
  |  Cite
Oxford Dictionaries Pro

For Oxford's best resources for writers, plus thesaurus, audio, and 1.9m examples.

Shop for an Oxford dictionary

Find the perfect Oxford dictionary for you in our online shop.
SHOP NOW ►

Word of the day

cur

/ kəː /
noun
an aggressive or unkempt dog …