hi
1 Americaninterjection
adjective
abbreviation
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Hawaii (state)
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Hawaiian Islands
interjection
Etymology
Origin of hi
First recorded in 1425–75; late Middle English hy, perhaps variant of hei hey
Explanation
Hi is a common greeting, more casual than "hello." When you walk down the street in a small town, it might seem like everyone you pass says "hi." The word hi is a good, nearly all-purpose greeting — it's appropriate in all but the most formal circumstances, so you might want to skip saying, "Hi" to the Queen when you meet her. When you greet someone, you have a lot of words to choose from, including "hey," "hello," "hiya," and "howdy," but hi is probably the most common. The first mention of hi attributes it to a Kansas native American in the 1800s.
Vocabulary lists containing hi
Scrabble: Two-Letter Words
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Spelling Practice 1, Unit 3
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Whoever is filming walks towards her, and says: "Hi, I like how you look."
From BBC • Mar. 27, 2026
The Hi Desert Lo-Fi Lit Fest is hosting free panels, workshops, and readings all weekend along.
From Los Angeles Times • Mar. 19, 2026
"Hi, for anyone who saw my set at All Things Go today, I am doing OK now," she wrote on Instagram.
From BBC • Sep. 28, 2025
Presenters Nikita Kanda and Haroon Rashid revealed that Tum Hi Ho, sung by Arijit Singh for the Bollywood film Aashiqui 2, was the nation's favourite.
From BBC • Sep. 12, 2025
Emily: “I don’t believe it. Rumors are spread by jealous people. Hi, Andy. Did you bring enough lunch for everyone?”
From "Speak" by Laurie Halse Anderson
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.