一日

yīrì

noun #8,832

Meanings

1 one day; a single day
2 once; on a certain day (literary)

Characters

One + day — a single day, often used in literary or set phrases.

Examples

一日之计在于晨。

Yīrìzhījìzàiyúchén.

The plan for the day lies in the morning.

一日不见，如隔三秋。

Yīrì bújiàn, rú gé sān qiū.

One day apart feels like three years.

他一日三餐都吃得很简单。

Tā yīrì sān cān dōu chī de hěn jiǎndān.

He eats simply for all three meals of the day.

Tips

grammar

一日 is more literary/formal than 一天 (yītiān), which is the everyday word for 'one day.' 一日 appears mainly in idioms and set phrases: 一日三餐 (three meals a day), 一日游 (yīrìyóu, day trip).

Stroke Order

一 yī

日 rì