Ordinal numbers with "di"

Also known as: 序数 (xùshù), ordinals and sequence numbers.

We use ordinal numbers to express things like "number one" or "second," so mastering them in Chinese is important. Fortunately, they are also very easy to learn by just adding the prefix 第 (dì).

Basic Pattern

In English, there are four different suffixes for ordinal numbers: -st, -nd, -rd and -th. Chinese makes things a lot simpler by using one prefix for all ordinal numbers: 第 (dì). This character is simply placed in front of the number:

Structure

第 + Number

Examples

Chinese	English
第 一dì-yī	The first
第 二dì-èr	The second
第 三dì-sān	The third
第 四dì-sì	The fourth
第 五dì-wǔ	The fifth
第 六dì-liù	The sixth
第 七dì-qī	The seventh
第 八dì-bā	The eighth
第 九dì-jiǔ	The ninth
第 十dì-shí	The tenth

Full Pattern with Measure Words

You can also add in a measure word and a noun to make the structure a bit fuller.

Structure

第 + Number + Measure Word + Noun

Examples

• 我 是 第 一 个 到 公司 的 人。Wǒ shì dì-yī gè dào gōngsī de rén.I'm the first person that came to the office.
• 他 要 坐 早上 第 一 班 地铁 去 上班。Tā yào zuò zǎoshang dì-yī bān dìtiě qù shàngbān.He needs to take the first train in the morning to go to work.
• 小李 是 她 的 第 三 个 男朋友。Xiǎo Lǐ shì tā de dì-sān gè nánpéngyou.Little Li is her third boyfriend.
• 我 的 第 一 个中文 老师 是 美国 人。Wǒ de dì-yī gè Zhōngwén lǎoshī shì Měiguó rén.My first Chinese teacher was American.
• 爸爸 的 第 一 个手机 是 NOKIA。Bàba de dì-yī gè shǒujī shì NOKIA.Dad‘s first cell phone was a Nokia.
• 你 的 第 一 个工作 是 什么？Nǐ de dì-yī gè gōngzuò shì shénme? What was your first job?
• 到 美国 的 第 二个 月，我 找到 了 工作。Dào Měiguó de dì-èr gè yuè, wǒ zhǎodào le gōngzuò .I found a job the second month I was in the USA.
• 第 二 行 第 五 个 汉字 怎么 读？Dì-èr háng dì-wǔ gè Hànzì zěnme dú? How do you read the fifth character from the second line?
• 这 次 考试，我 是 我们 班 第 一。Zhè cì kǎoshì, wǒ shì wǒmen bān dì-yī.On this test, I was first in our class.
• 这 次 比赛，我们 班 第 一，他们 班 第 二。Zhè cì bǐsài, wǒmen bān dì-yī, tāmen bān dì-èr.In this contest, our class is the first, their class is the second.

Note that there are some words that don't use measure words because they themselves are already measure words. For example: 天 (tiān), 年 (nián), 周 (zhōu), 次 (cì), etc.

• 第 一 天，我们 在 宾馆 里。Dì-yī tiān, wǒmen zài bīnguǎn lǐ.On the first day, we will be in the hotel.
• 来 上海 以后 的 第 二 年，他 开 了 这 家 公司。Lái Shànghǎi yǐhòu de dì-èr nián, tā kāi le zhè jiā gōngsī.He started this company his second year after coming to Shanghai.
• 下 个 月 的 第 一 周 老板 要 出差。Xià gè yuè de dì-yī zhōu , lǎobǎn yào chūchāi.The boss needs to go on a business trip the first week of next month.
• 这 是 我 第 一 次 去 北京。Zhè shì wǒ dì-yī cì qù Běijīng.This is my first time going to Beijing.

Exceptions

Note that some nouns can form ordinals without 第 (dì). With these, the number can be used directly. For example, 七楼 (qī lóu) is "the seventh floor," even though there is no 第 (dì).

Chinese	English	Example
楼lóu	floor (of a building)	七楼qī lóu
层céng	floor (of a building)	一层yī céng

See also

• Measure words for counting

Sources and further reading

• A Practical Chinese Grammar For Foreigners (外国人实用汉语语法) (pp. 58-73) →buy
• Chinese: An Essential Grammar, Second Edition (pp. 17-8) →buy
• Integrated Chinese: Level 1, Part 1 (3rd ed) (p. 183) →buy