There is no language called "Swiss." Switzerland has four official languages, and you'd have to specify which one you meant.
The official languages are German, French, Italian, and Romansh (in decreasing order of the percentage of the population that speaks them as their primary language). Swiss children are usually taught at least one language other than their primary tongue at school, so "auf wiedersehen" would be understood by most if not all Swiss... for that matter, it's likely that most of them would also understand "au revoir" or "ciao".
The Swiss speak many languages, including German, Swiss-German, French, Italian and Romansch.
Even Swiss German has many different dialects, but these are some basic translations that are mainly used, and understood almost everywhere.
Hello: Hoi (informal), Hallo (standard), Gruezi (formal)
Goodbye: Ciao (informal), Tschuss (informal), Adieu/ Ade (formal)
salve=hello vale=goodbye
Hello in Hawaiian is Aloha (it also means goodbye)
Hello (how are you): Shodagee Goodbye (See you later): Deawagawik
The Bahamas is an English speaking country, so the answer is "hello."
Hello- Bonjour OR salut Good-Bye- Au revoir
salve=hello vale=goodbye
"Hello" in Filipino is "Kamusta" and "goodbye" is "Paalam."
Hello - Talofa Goodbye - Tofa Soifua
Hello = Hola Goodbye = Adiós
Olá - Hello Adeusinho - Goodbye
Hello = Hola Goodbye = Adiós
Hello : Nomoskaar Goodbye : Bidai
Jambo is hello and Kwahari is goodbye
"Hello" in Quechua is "Rimaykullayki" and "goodbye" is "Allinllachu."
To say Hello is Ni hao And to say goodbye is Zai jian
to say "hello" you say "talofa" and to say goodbye you say "Fa".
Hello is "Jambo" or "Habari", while goodbye is "Kwaheri".