Hi vs. Hai: What's the Difference?

Hi and Hai Definitions

Used to express greeting. See Note at hey.

(Internet slang) hi

A friendly, informal, casual greeting said upon someone's arrival.

Hi, how are you?

I just dropped by to say “hi”.

An exclamation to call attention.

(dated) Expressing wonder or derision.

The word "hi" used as a greeting.

I didn't even get a hi.

Informal spelling of high, often in hyphenated terms.

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An expression of greeting;

Every morning they exchanged polite hellos

A state in the United States in the central Pacific on the Hawaiian Islands