• n. 月的第六日，（与the连用的）第六个；六分之一
• adj. （与 the 连用）第六的，第六个的；六分之一的

six,六，-th,表序数。

sixth (adj.)

1520s, replacing Middle English sixte (c. 1200), from Old English syxte, from siex (see six). Compare Old Frisian sexta, Middle Dutch seste, Old High German sehsto, German sechste, Gothic saihsta. With ending conformed to -th (1). Related: Sixthly. The noun meaning "a sixth part" is from 1550s. As a music tone, from 1590s. Sixth sense "supernatural perception of objects" is attested from 1712; earlier it meant "titillation, the sense that apprehends sexual pleasure" (1690s, from Scaliger).

Then said Peter, That is false; for there is a sixth Sense, that of Prescience : for the other five Senses are capable only of Knowledg ; but the Sixth of Foreknowledg ; which Sense the Prophets had. [William Whitson, "Primitive Christianity Reviv'd," vol. V, London, 1712]

1. I had one year in the sixth form to retake my GCSEs.

我读中学六年级的时候有一年的时间可以重新参加普通中等教育证书考试。

来自柯林斯例句

2. The very idea of a sixth form college was novel in 1962.

第六学级学院在1962年还是新提法。

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3. In Tokyo share prices have plummeted for the sixth successive day.

东京股价已连续第6天猛跌。

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4. The manufacturing economy contracted in October for the sixth consecutive month.

10月，制造业经济已经连续第6个月出现萎缩状况。

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5. Ovarian cancer is the sixth most common cancer contracted by women.

卵巢癌是女性常患的第六大癌症。

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