九邊形
/-{-{jiǔbiānxíng}-}-/, /paːt̚³ piːn⁵⁵ jɪŋ²¹/, /baat3 bin1 jing4/, /baat8 bin1 jing4/, /bad3 bin1 ying4/, /jeoubianshyng/, /jiǒubiansíng/、/ㄐㄧㄡˇ ㄅㄧㄢ ㄒㄧㄥˊ/
noun
  1. eneágono
  2. nonágono