ninth; ninthly

1. 古羅馬歷中自三、五、七、十各月的十五日起算的前第九日即三、五、七、十各月的第七日；其它各月的第五日
   The ninth day before the ides of a month; in the ancient Roman calendar, the seventh day of March, May, July, or October and the fifth day of the other months.
2. 九和弦由第三、第七和第九三個基礎(chǔ)音組成的和弦
   A chord consisting of a root with its third, seventh, and ninth.
3. 他在40個人的班級里排?em>誥琶?
   He took the ninth position in his class of forty.

第的英語翻譯：

九的英語翻譯：