懂中文 Dong Chinese

昨

zuó

yesterday

Phonosemantic compound. 日 represents the meaning and 乍 represents the sound.

Components
日 meaning component

日  Meaning component

rì

  

sun

乍 sound component

乍  Sound component

zhà

  

suddenly

Evolution

昨 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
昨 Clerical script Western Han dynasty (202 BC-9 AD)

Clerical script

Western Han dynasty (202 BC-9 AD)
昨 Regular script Modern

Regular script

Modern
Definitions

昨  

zuó

yesterday; in former times, past

Most common words with 昨
Freq.
Word
Meaning

昨天

yesterday

昨晚

last night

昨日

yesterday

昨

yesterday

昨夜

last night