In German, "hoi" is a casual greeting similar to saying "hi" or "hey" in English. It is commonly used among friends or peers.

more casual, most casual

Swiss

In Switzerland, there are four languages that are spoken: Romantsch, French, Italian and Swiss German. Most people speak French and Swiss German. To say hi in Swiss German, say: Hoi [Hoe-ë] if talking to someone you already know (casual language) Grüezi [Grui-zi] if talking to someone of whom you recognize athority Salü [Sa (the a is spoken like the a in saturation) - lu (the u is like ui)] if talking to a child or someone you already know