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”.

2025年9月7日 · Noun hi (plural his) The word "hi" used as a greeting. synonyms Synonyms: greeting, hello I didn't even get a 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]

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...

2025年4月30日 · Among the various ways to say hello, “Hi” is one of the most commonly used informal greetings in English. But what does “hi” really mean? When and how is it used? In this …

2023年10月1日 · What is the meaning and origin of the word “hi”? Learn how this word has been used to greet and express interest in others.