adjective / verb HSK 2
Traditional 開心
kāi xīn
happy · joyful · delighted · to feel happy

Meaning

开心 describes a state of happiness, joy, or pleasure. It literally means 'open heart' and conveys a sense of lightheartedness and contentment. This is one of the most common everyday words for expressing happiness in Mandarin.

Usage

Native speakers use 开心 frequently in casual conversation to describe feeling happy or pleased about something. It's warmer and more colloquial than 高兴 (gāo xìng), though both are common. Often appears in phrases like 很开心 (very happy) or as a verb meaning 'to make someone happy' as in 让我很开心 (made me very happy).

Examples

  1. 01
    今天我很开心,因为见到了老朋友。
    Jīn tiān hěn kāi xīn, yīn wèi jiàn dào le lǎo péng you.
    I'm very happy today because I saw an old friend.
  2. 02
    祝你生日快乐,天天开心
    Zhù shēng kuài , tiān tiān kāi xīn!
    Happy birthday! May you be happy every day!

Characters

Common collocations

  • 开心
    hěn kāi xīn
    very happy
  • 开心
    kāi kāi xīn xīn
    happily, cheerfully
  • 让人开心
    ràng rén kāi xīn
    to make people happy
  • 玩得很开心
    wán de hěn kāi xīn
    to have a lot of fun

Antonyms

Origin

The word combines 开 (to open) and 心 (heart), literally meaning 'open heart,' suggesting an unburdened, joyful emotional state where one's heart is open and free.

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