Hello is a word that can be used in any sentence like...
Hello you little peace of shit or
Hello mom now leave me alone
this means the act of greeting someone
Dave: Hello Mark
Mark: Hi Dave
A common word used among many different languages and typically a friendly greeting.
"Hello how was your day today?"
"Hello there , im just walking my dog,"
"Hello im doing fine, how about you?"
A famous cereal based off of hell but in shapes of o's therefore Hell-o(Cereal may cause the melting of tongue, going to hell, becoming Satan but without powers, becoming a protagonist in a shitty Netflix movie, and DEATH).
Guy 1: Dude I love hellos they're so tasty!
Guy 2: Ikr
Guy 3: *Dies from eating hellos*
Guy 2 and 1: Hello, dude are you there?
Guy 3: *Cries in dead*