嗨
hāi

an exclamation

Senses

嗨 hāi (also hēi) hi

(loanword) A greeting used to say hello or to get someone's attention

嗨 hāi (also hēi) hey

Used to express surprise, satisfaction, or praise

嗨 hāi alas

Expresses sadness, regret, or a sigh of frustration; often written as 咳 hāi in this sense.

嗨 hāi (also hēi) heave-ho

A rhythmic shout used when performing heavy physical labor together.

嗨 hāi [filler]

A meaningless filler syllable used in the lyrics of folk songs.

嗨 hāi high

(loanword) A state of excitement or euphoria, either natural or drug-induced.

References

same_as 嗨/嗨 → 嘿/嘿
same_as 嗨/嗨 → 咳/咳
variant 嘿/嘿 → 嗨/嗨
same_as 咍/咍 → 嗨/嗨
same_as 嗐/嗐 → 嗨/嗨