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 Usage

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

• 第 一Dì yī the first
• 第 二 Dì èrthe second
• 第 三 Dì sānthe third
• 第 四 Dì sìthe fourth
• 第 五 Dì wǔthe fifth
• 第 六 Dì liùthe sixth
• 第 七 Dì qīthe seventh
• 第 八 Dì bāthe eighth
• 第 九 Dì jiǔthe ninth
• 第 十 Dì shíthe tenth
• 我 是 第 四 。 Wǒ shì dì sì. I'm the fourth.
• 这 次 考试 ， 我 是 我们 班 第 一 。 Zhè cì kǎoshì, wǒ shì wǒmen bān dì yī. This time testing, I was the first in our class. (Meaning: I was the best in class)
• 我们 班 第 一 ， 他们 班 第 二 。 Wǒmen bān dì yī, tāmen bān dì èr. Our class is the first, their class is the second. (Meaning: We are the best, they are the second best)

Full Pattern

You can also add in a [measure word] (MW) and a [noun] to make the structure a bit fuller.

Structure

第 + Number （+ MW + Noun）

Examples

• 我 是 第 四 个 人 。I'm the fourth person.
• 这 是 我 的 第 二 个 女儿。This is my second daughter.
• 小李 是 他 的 第 三 个 女朋友。Little Li is his third girlfriend.
• 这 是 我 今天 喝 的 第 八 瓶 啤酒。This is the 8th bottle of beer I drank today.
• 第 一 个 月，我们 去 中国，第 二 个 月，我们 要 去 泰国。The first month, we go to China, the second month, we go to Thailand.
• 我 的 第 一 个中文 老师 是 美国 人。My first Chinese teacher was American.
• 我 的 第 一 个手机 是 NOKIA。My first cellphone was NOKIA.
• 我 的 第 一 个工作 是 服务 员。My first job was a waiter.
• 你 是 我 的 第 一 个 朋友。You are my first (best) friend.
• 我们 今天 学 第 三 课。Today we study the third chapter.
• 这 是 我 第 一 次 说 中文。This is my first time speaking Chinese.

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。On the first day, we will be in the hotel.
• 第 二 天，我们 去 了 长城。On the second day, we went to the Great Wall.
• 这 是 我 第 一 次 去 北京。This is my first time going to Beijing.

Exceptions

Note that some nouns can form ordinals without 第 (dì). These include:

• 楼house/ building
• 层floor (of a building)
• 姐older sister
• 弟younger brother
• 妹younger sister
• 哥older brother

With these, the number can be used directly. For example, 七楼 (qī lóu) is "the seventh floor"，or 二姐 (Èr jiě) "the second oldest sister".

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