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)

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

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

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.

Oct 13, 2020 · Why Do We Say “Hello” and “Hi”? October 13, 2020 We use hello several times a day to greet people or attract attention. But as prevalent as the word is, it is relatively new. …

Apr 30, 2025 · But what exactly does "hi" mean, how did it originate, and how is it properly used? In this comprehensive guide, we will explore the origins, appropriate contexts, cultural …

(Definition of hi from the Cambridge Learner's Dictionary © Cambridge University Press)