Here is a list of 50 ways to say “Hello” in different languages as well as different English slang versions.
I would definitely add “Marhaba” (Arabic), “Hey” (English) and “Ciao” (Italian) to this list. Also, I wouldn’t say “Bonjour” for French, as it means “good morning”. It should be replaced with “Salut”.
How many of these did you know already? And do you know any additional words for greeting people?