Definitions

hi

[hahy] / haɪ /

INTERJECTION

hello

Synonyms

STRONG

greetings howdy welcome

WEAK

bonjour buenas noches buenos dias good day good morning hey hi-ya how are you how goes it howdy-do shalom what's happening what's up

Antonyms

WEAK

adios au revoir goodbye

NOUN

greeting

Synonyms

STRONGEST

hello nod ovation reception salute

STRONG

accosting acknowledgment address aloha ciao compliments hail heralding highball how-do-you-do howdy note notice regards respects rumble salaam salutation testimonial

WEAK

best wishes card compellation good wishes high-five letter speaking to ushering in what's happening

Antonyms

STRONG

heedlessness ignorance neglect

WEAK

farewell goodbye

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.

Ovitz, the former superagent, says he’ll always stop to say hi, but: “We all know: Don’t hang out.”

From The Wall Street Journal • Mar. 9, 2026

“I come up here sometimes just to say hi to him.”

From Los Angeles Times • Jan. 1, 2026

Get some rest, pal, and say hi to Susie for me.

From Slate • Nov. 24, 2025

"Sometimes you get a message saying, 'Oh, hi, I just saw you at the urinal,'" he laughs.

From BBC • Oct. 24, 2025

And he turned, walked across the street, said hi to my mother.

From "Okay for Now" by Gary D. Schmidt