How do you say hello in Catalan?

There are a few ways to say "hello" in Catalan, depending on the context and formality:

* Hola: This is the most common and versatile way to say hello, similar to "hello" in English. It can be used in almost any situation, from formal to informal.

* Bon dia: This means "good day" and is used in the morning, similar to "good morning" in English.

* Bona tarda: This means "good afternoon" and is used in the afternoon, similar to "good afternoon" in English.

* Bona nit: This means "good night" and is used in the evening, similar to "good evening" in English.

* Adéu: This means "goodbye" and can be used as a farewell greeting.

* Ciao: This is a more informal greeting, similar to "hello" or "goodbye" in English.

You can also use "Bon dia, com estàs?" (Good day, how are you?) or "Bona tarda, com estàs?" (Good afternoon, how are you?) as a polite greeting.