fifth column第五纵队;出版者;唱片名
fifth crusade第五次十字军东征
Fifth Street第五街;第五大街;第五路
fifth alarm五级火警
Fifth PART古惑仔一班人马到场
Fifth quadrant第五象限
Fifth Grade五年级
Fifth Symphony第五交响曲
Fifth Elements第五元素
ORD（序数词） The fifth item in a series is the one that you count as number five. 第5
Joe has recently returned from his fifth trip to Australia.
乔最近从他第5次澳大利亚之旅返回。
FRACTION（分数词） A fifth is one of five equal parts of something. 1/5
India spends over a fifth of its budget on defence.
印度在国防上支出预算的五分之一以上。
N-SING（单数型名词） If you take or plead the fifth, you take the . 《美国宪法修正案》第五条