Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “hello”

See all translations

hello

exclamation, noun uk   /helˈəʊ/ us    /-ˈoʊ/ ( also mainly UK hallo, hullo)
A1 used when meeting or greeting someone: Hello, Paul. I haven't seen you for ages. I know her vaguely - we've exchanged hellos a few times. I just thought I'd call by and say hello. And a big hello (= welcome) to all the parents who've come to see the show.A1 something that is said at the beginning of a phone conversation: "Hello, I'd like some information about your flights to the US, please." something that is said to attract someone's attention: The front door was open so she walked inside and called out, "Hello! Is there anybody in?" informal said to someone who has just said or done something stupid, especially something that shows they are not noticing what is happening: She asked me if I'd just arrived and I was like "Hello, I've been here for an hour." old-fashioned an expression of surprise: Hello, this is very strange - I know that man.
More examples
(Definition of hello from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of hello?
Add Cambridge dictionaries to your browser to your website

Definitions of “hello” in other dictionaries

Word of the Day

lamb

a young sheep, or the flesh of a young sheep eaten as meat

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More