Definitions

èr (numeral) two; 2

Etymology

Two horizontal strokes, representing the number two.

About

The character "二" originates as a simple ideogram representing the number two through two horizontal strokes, a structural form that has consistently served as its numeral designation. Etymologically, it functions as a direct visual symbol for the quantity, with the strokes typically written as parallel lines, though in some script styles the upper stroke is rendered shorter. While its primary meaning as the cardinal number two has remained central, the character has developed extended uses over time, such as denoting an ordinal position in terms like "第二" for second, or indicating duality and secondary qualities in compounds including "二重" for double and "二手" for second-hand, reflecting a semantic broadening from its original numerical function.

Etymology Hide

Oracle etymology image
Oracle (~1250-1000 BC)
Bronze etymology image
Bronze Late Spring and Autumn (~500 BC)
Bronze etymology image
Bronze Warring States (475-221 BC)
Bronze etymology image
Bronze Warring States (475-221 BC)
Seal etymology image
Seal Chu (Warring States: 475-221 BC)
Seal etymology image
Seal Chu (Warring States: 475-221 BC)
Seal etymology image
Seal Shuowen (~100 AD)
Seal etymology image
Seal Shuowen (~100 AD)
Clerical etymology image
Clerical Qin dynasty (221-206 BC)
Clerical etymology image
Clerical Western Han dynasty (202 BC-9 AD)
Clerical etymology image
Clerical Eastern Han dynasty (25-220 AD)
Clerical etymology image
Clerical Eastern Han dynasty (25-220 AD)
Traditional Modern
Simplified Modern

Example Sentences Hide

我今年十岁。

Wǒ jīnnián shí'èr suì.

I am twelve years old this year.

他是第名。

Tā shì dì èr míng.

He is in second place.

这本书十元。

Zhè běn shū èrshí yuán.

This book costs twenty yuan.

我住在楼。

Wǒ zhù zài èr lóu.

I live on the second floor.

现在十点半。

Xiànzài shí'èr diǎn bàn.

It is twelve thirty now.

氧化碳是一种气体。

Èryǎnghuàtàn shì yī zhǒng qìtǐ.

Carbon dioxide is a type of gas.

月份有十八天。

Èr yuèfèn yǒu èrshí bā tiān.

February has twenty-eight days.

次世界大战发生在十世纪。

Dì èr cì shìjiè dàzhàn fāshēng zài èrshí shìjì.

World War II occurred in the twentieth century.