To know what it means you need context
“Hello, I hate you” or “Hello! I love you please marry me” sometimes “Hello, please have my babies” or even “hello,go die and rot in hell please”
A very basic greeting people use very often
Friend: hello!
Friend 2: hi, how are you?
Hello is the way we answer the phone and initiate a sentence it way originally used as a sign of surprise in the early England.
Hello I’m Joanna
Hello I’m Caitlin nice to meet you
Hello is used as an object for whenever you're having a stroke.
I am pretty sure the weird sensation I am feeling in my left arm could be very much a sign of a stroke therefore I will apply hello to my wounds.
Hello is a great word to use to say hi or hello or hola.
Boy: hello baby :girl I HATE YOU