hello

US /heˈloʊ/
UK /heˈloʊ/
"hello" picture
1.

used as a greeting or to begin a phone conversation

:
Hello, how are you today?
Hello? Can you hear me?
2.

used to express surprise or to call attention

:
Hello! What's going on here?
Hello, is anyone listening to me?
1.

an act of saying or shouting 'hello'

:
She gave a quick hello as she passed by.
I heard a faint hello from the other room.
1.

to say or shout 'hello'

:
He helloed me from across the street.
She helloed the new neighbors as they moved in.