sixth

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++sixth1 /sɪksθ/ ●●● S3 W3 adjective  HMPARTcoming after five other things in a series 第六（个）的 her sixth birthday 她的 6 岁生日 the sixth century 6世纪 —sixth pronoun Let’s have dinner on the sixth (=the sixth day of the month). 我们六号一起吃饭吧。

Examples from the Corpus

sixth• June is the sixth month.the sixth• I'll call you on the sixth.sixth2 noun [countable]  HMPARTone of six equal parts of something 六分之一 About one sixth of the children admitted to taking drugs. 大约六分之一的儿童承认吸毒。

sixth1 adjectivesixth2 nounChinese  

other things coming Corpus five a in after series

sixth

I

sixth¹ /sɪksθ/ adjective
coming after five other things in a series:
    her sixth birthday
    the sixth century
—sixth pronoun:
    Let’s have dinner on the sixth (=the sixth day of the month).

II

sixth² noun [countable]
one of six equal parts of something:
    About one sixth of the children admitted to taking drugs.