/həˈləʊ,hɛˈləʊ/
A salutation or a greeting, mostly used to start conversations and conversations on the telephone.
Hi,hey and '
sup are used in the same situation.
Pronounciation: (British english and american english)
heh·low
Informal:
Hi
Yo
'
sup
Hey
Hiya
Howdy
Howya
'Yello
Herro
Formal:
Goodmorning
Hello
Good afternoon
Good evening
It's nice to
meet you
It's a pleasure to meet you (These last two only work when you are meeting someone for the first time.)