A1
used to greet someone
Dictionary examples:
Hello, homework! Why are you here? (0.0)
Hello, wallet! Why are you empty? (0.0)
Hello, brain! Are you there? (0.0)
Hello, Monday! Why are you here again? (0.0)
Hello, Paul. I haven't seen you for a while! (9.0)
I just thought I'd stop in and say hello. (17.1)