Kilo Lingo

(kāi xīn) - happy, joyful, delighted in Mandarin

kāixīn

Traditional: 開心

Line drawing of 开心
Coloured illustration of 开心
HSK 3
#507 of 5,000 Core 1000

Translation

happy, joyful, delighted

Word origin

开心 means happy or delighted, literally an 'open heart'. 开 (kāi) is to open. 心 (xīn) is a pictograph of the heart and means heart or mind.

Origin
compound
Root
开 (kāi, to open) + 心 (xīn, heart)

Stroke order

Stroke order for 开

Stroke order for 心

Examples

I am very happy today.

Seeing you makes me happy.

I hope you are happy every day.

We had a really fun time today.

She is smiling happily.

开心 (kāi xīn) literally means to open the heart and is a common, informal way of saying happy or joyful. It is interchangeable with 高兴 (gāo xìng) in many contexts but feels slightly warmer and more heartfelt. 开心 is widely used in modern spoken Mandarin and social media. It can be used predicatively (我很开心, I am happy) or attributively (开心的笑容, a happy smile).

Used in

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This word is part of lesson 11.