noun🔗Share八角形A polygon with eight sides and eight angles."The stop sign has eight sides; it is an octagon. "一時停止の標識は八つの辺があります。それは八角形です。mathfigurestructureChat with AIVocabulary GamePractice Reading
noun🔗ShareオクタゴンOften in the form Octagon: the arena for mixed martial arts."The mixed martial arts tournament was held in a large octagon. "総合格闘技のトーナメントは大きなオクタゴンで開催されました。sportentertainmentbuildingareastructureChat with AIVocabulary GamePractice Reading
