(hāi) — (interjection) hi, hello (informal greeting, borrowed from English); (interjection) hey! (to attract attention)

Definition

嗨 (hāi) is a casual, borrowed interjection used to greet friends like 'hi' or to get someone's attention like 'hey'. It is purely colloquial — not used in writing or formal speech.

interjection
hihello (informal greeting, borrowed from English)hey! (to attract attention)

Examples

  • hāi, Nǐ zuì jìn zěn me yàng?
    Hi, how have you been lately?
  • hāi! Bié zǒu, wǒ hái méi shuō wán ne.
    Hey! Don't go, I haven't finished talking yet.
  • hāi, Hǎo jiǔ bú jiàn! nǐ biàn huà zhēn dà.
    Hey, long time no see! You've changed so much.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
kǒumouth; speech
Sound part声符shēngfú
hǎihāi
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

嗨 puts 口, a mouth for speech, beside 海, which gives the sound.

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