ninth
ordinal number uk/naɪnθ/ us/naɪnθ/
A2 第九（的）
9th written as a word
The ninth letter of the alphabet is I. 字母表中第9个字母是 I。
The spring semester ends on the ninth (of May). 春季学期（5月）9号结束。
UK She was/came ninth in the national finals. 她在全国决赛中曾是/获得第九名。
US She was/came in ninth in the national finals. 她在全国决赛中曾是/获得第九名。
ninth
noun [ C ] uk/naɪnθ/ us/naɪnθ/
九分之一
one of nine equal parts of something
A ninth of 27 is 3. 27的九分之一为3。