1
French. Formal: Bonjour. Informal: Salut.
2
Spanish. Formal: Hola. Informal: ¿Qué tal? (What's up?)
3
Russian. Formal: Zdravstvuyte.
4
Chinese. Formal: Nǐn hǎo.
5
Italian. Formal: Salve.
6
Japanese. Formal: Konnichiwa.
7
German. Formal: Guten Tag.
8
Portuguese. Formal: Olá
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And my favourite word :- nani (what)