A greeting when introduced to or seeing a living things such as a friend of family member.
'Hello' is also the name of the smash hit song by a female singer that inspired several humorous parodies.
"Hello there! It is nice to see you!" She exclaimed to her sister.
"Hello ma'am, would you like help with your bags?" The cashier asked the customer.
"Oh, hello Max!" The owner spoke to her dog.