Common Greetings:
* English: Hello, Hi, Good morning/afternoon/evening
* Spanish: Hola, Buenos días/tardes/noches
* French: Bonjour, Salut
* German: Hallo, Guten Tag/Morgen/Abend
* Italian: Ciao, Buongiorno/buona sera
* Portuguese: Olá, Bom dia/tarde/noite
* Russian: Здравствуйте (Zdravstvuyte), Привет (Privet)
* Japanese: こんにちは (Konnichiwa)
* Chinese (Mandarin): 你好 (Nǐ hǎo)
* Korean: 안녕하세요 (Annyeonghaseyo)
More Unique Greetings:
* Arabic: مرحبا (Marhabaan)
* Hebrew: שלום (Shalom)
* Hindi: नमस्ते (Namaste)
* Thai: สวัสดี (Sawasdee)
* Vietnamese: Xin chào (Xin chao)
* Greek: Γεια σου (Ya sou)
* Turkish: Merhaba
Informal Greetings:
* English: Hey, What's up?
* Spanish: ¿Qué tal?
* French: Ça va?
* German: Wie geht's?
* Italian: Come stai?
* Portuguese: E aí?
* Russian: Как дела? (Kak dela?)
* Japanese: お元気ですか？ (O genki desu ka?)
* Chinese (Mandarin): 你好吗？ (Nǐ hǎo ma?)
* Korean: 잘 지내세요? (Jal jinae seyo?)
Remember:
* Some languages have different greetings depending on the time of day.
* There are always regional variations and dialects that can affect greetings.
* It's always polite to learn and use the appropriate greeting for the situation.