hello

American  

[he-loh, huh-, hel-oh] / hɛˈloʊ, hə-, ˈhɛl oʊ /

interjection

1. (used to express a greeting, answer a telephone, or attract attention.)

2. (an exclamation of surprise, wonder, elation, etc.)

3. (used derisively to question the comprehension, intelligence, or common sense of the person being addressed).

   You're gonna go out with him? Hello!

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noun

hellos plural

1. the call “hello” (used as an expression of greeting).

   She gave me a warm hello.

verb (used without object)

helloed, helloing

1. to say “hello”; to cry or shout.

   I helloed, but no one answered.

verb (used with object)

helloed, helloing

1. to say “hello” to (someone).

   We helloed each other as though nothing had happened.

hello British  

/ hə-, ˈhɛləʊ, hɛˈləʊ /

1. an expression of greeting used on meeting a person or at the start of a telephone call

2. a call used to attract attention

3. an expression of surprise

4. an expression used to indicate that the speaker thinks his or her listener is naive or slow to realize something

   Hello? Have you been on Mars for the past two weeks or something?

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noun

1. the act of saying or calling "hello"

Other Word Forms

Inflected Forms

noun

• hellos
  plural

Etymology

Origin of hello

First recorded in 1865–70; variant of hallo

Explanation

Hello! Hi! How are you doing? Hello is a salutation or greeting commonly used to begin conversations or telephone calls. Hello has been used as an English greeting since the 19th century. Most agree that it is related to the older French exclamation “Holà” — which means essentially “Ho there!” — like you might say to a horse to tell it to stop. Nowadays it’s still used to get someone’s attention but instead of stopping you’re starting something — usually a chat. Hallo and Hullo are variations of Hello used by British English speakers.

Example Sentences

If organisations are quick to highlight AI adoption, says Dan Boyles, CEO of consultancy Hello AI Collective, they're not always clear on why they're adopting it and how they expect to benefit.

From BBC • Jun. 1, 2026

The team also marked the beginning of testing with a symbolic moment by sending an email titled "Hello Universe," referencing the famous introductory messages used during the early days of computer programming.

From Science Daily • May 15, 2026

However, the man merely crossed paths with another on the way to the bathroom, saying "Hello" as he went, the study said.

From Barron's • May 7, 2026

Kandasamy, who runs Mahjong Palace, said there’s a “neuro connective” element to mahjong, and if you’re “taking three seconds to decipher this new Hello Kitty-holding-something on the tile,” that’s precious time lost.

From The Wall Street Journal • Apr. 17, 2026

"Hello," I said conversationally, sitting down on the edge of the bed.

From "The Bell Jar" by Sylvia Plath