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