HI definition: 1. used as an informal greeting, usually to people who you know: 2. written abbreviation for the…. Learn more.

The meaning of HI is —used especially as a greeting. How to use hi in a sentence.

A friendly, informal, casual greeting said when meeting someone. Hi, how are you? I just dropped by to say “hi”.

HI in American English abbreviation Hawaii (approved esp. for use with zip code)

In Lists: Top 2000 English words, Spoken greetings, Things you say when someone gets home, more... Collocations: say a quick hi (to), [waved, nodded] to say hi, stop [to, and] say hi, more...

hi (haɪ) sentence substitute an informal word for hello [C20: originally US, from hiya]

Definition of hi exclamation in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Oct 15, 2025 · Noun hi (plural his) The word "hi" used as a greeting. synonyms Synonyms: greeting, hello I didn't even get a hi.

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Oct 1, 2023 · What is the meaning and origin of the word “hi”? Learn how this word has been used to greet and express interest in others.