为
wèiwéi HSK2

do

为 (為) wèi frequency
on behalf of preposition
preposition used to indicate the person or object for whom or on whose behalf an action is performed, or to whom the responsibility pertains.

你应该为自己的未来负责。

nǐ yīng​gāi wèi zì​jǐ de wèi​lái fù​zé.

You should be responsible for your own future.

for preposition
for the sake of; on behalf of; intended for or directed toward a recipient

这是我为你准备的礼物。

zhè shì wǒ wèi nǐ zhǔn​bèi de lǐ​wù.

This is the gift I prepared for you.

because of preposition
on account of; due to; as a result of a specific reason or cause

他为这件事感到很伤心。

tā wèi zhè jiàn shì gǎn​dào hěn shāng​xīn.

He felt very sad about this matter.

为 (為) wéi
act as verb
to serve in a specific capacity, behave as, or be

选他为代表。

xuǎn tā wéi dài​biǎo.

Elect him as the representative.

regard as verb
to take or consider something as

以此为准。

yǐ cǐ wéi zhǔn.

Take this as the standard.

become noun
to change or turn into

变废为宝。

biàn fèi wéi bǎo.

Turn waste into treasure.

be verb
to be; to equal (used in formal or mathematical contexts to link a subject and its predicate or value).

一加一为二。

yī jiā yī wéi èr.

One plus one equals two.

do punctuation
to do, act, or perform

事在人为。

shì​zài​rén​wéi.

Success depends on human effort.

by preposition
marker used to indicate the passive voice

为人所笑。

wéi rén suǒ xiào.

To be laughed at by others.

Frequency
Character
Written text
18th most common 5369.6 per million
Movie subtitles
27th most common 5320.8 per million appears in 100% of films
Word
Movie subtitles
1358.3 per million appears in 98% of films
Written text
3049.7 per million

Details
HSK 2.0
Level 2
HSK 3.0
Level 2
Traditional
為爲
Strokes
4
Unicode
U+4E3A

Sources
Definitions
CC-CEDICT
Frequency data
MTSU Chinese text computingSUBTLEX-CHBCC Corpus (BLCU)