Chinese name: 昨天

Pinyin: zuó tiān

English name: yesterday

Characters: The first character 昨 consists of a sun radical and a phonetic component 乍 (pinyin: zhà, original meaning: carving wood with a tool, current meaning: suddenly, just). The character simply means the day that has just passed.

The second character 天 is an ideographic character. Originally in oracle bones, it is a picture of a big person with sky above him. Now the character simply means sky or day.

A literal translation of 昨天 in English is passed day.