Hello in so many languages

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How would you say Hello in all the languages that we know and speak here. In Hindi its "Namaste" In Thai we start with "Sawatdee" In French it is "Bonjour" In Italian it is "Buongiorno"- I think. Correct me if I am wrong I'm trying to get this list updated with as may languages as possible, so add from all the languages that you know.