Definitions

kāi (verb) to open; to start
kāi (verb) to turn on; to operate (a vehicle)
kāi (verb) to boil

Etymology

Simplified form of . Pictograph of two hands () opening the bolt () on a door (). The traditional component was removed for simplification.

About

The character for "to open", now written as 开 in its simplified form, originated from a more pictographic traditional variant, 開. This traditional form graphically depicted two hands removing a bolt or bar from a gate, a composition that directly illustrated the core action of unfastening or unlocking. Over centuries, its application broadened significantly from this concrete physical act to encompass a wide range of abstract and metaphorical uses, including to start, to operate, to initiate, or to turn on. The modern simplified form 开 is a streamlined retention of the central component from that older pictograph, focusing on the idea of the removed barrier itself, which continues to effectively convey the fundamental concept of initiation or access.

Etymology Hide

Seal etymology image
Seal Shuowen (~100 AD)
Seal etymology image
Seal Shuowen (~100 AD)
Seal etymology image
Seal Qin dynasty (221-206 BC)
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)
Traditional Modern
Simplified Modern

Example Sentences Hide

车去上班。

Wǒ kāichē qù shàngbān.

I drive to work.

门让我进去。

Qǐng kāimén ràng wǒ jìnqù.

Please open the door and let me in.

学校明天始放假。

Xuéxiào míngtiān kāishǐ fàngjià.

School starts holiday tomorrow.

春天来了,花儿都了。

Chūntiān lái le, huār dōu kāi le.

Spring is here, and flowers are blooming.

发了一个新的软件。

Tā kāifā le yī gè xīn de ruǎnjiàn.

He developed a new software.

如果你不心,可以跟我说。

Rúguǒ nǐ bù kāixīn, kěyǐ gēn wǒ shuō.

If you are unhappy, you can tell me.

改革放政策促进了经济发展。

Gǎigé kāifàng zhèngcè cùjìn le jīngjì fāzhǎn.

The reform and opening-up policy promoted economic development.

在会议上,他公提出了自己的观点。

Zài huìyì shàng, tā gōngkāi tíchū le zìjǐ de guāndiǎn.

At the meeting, he openly expressed his own viewpoint.