Arrivederci, ci vediamo domani.

Arrivederci is generally polite and neutral. It is more formal than ciao, but not stiff or overly formal. You can use it with people you do not know well, in shops, at work, or in everyday polite conversation.

If you want something very informal, you would usually say ciao. If you want something especially formal, Italian sometimes uses arrivederLa, but that is less common in everyday speech.

Yes. Arrivederci is a goodbye expression and works morning, afternoon, or evening. It does not depend on the time of day.

So unlike greetings such as buongiorno or buonasera, arrivederci is always safe as a farewell.

Because they do slightly different jobs.

• Arrivederci = a general goodbye
• Ci vediamo domani = a more specific see you tomorrow

Putting them together sounds natural: first you say goodbye, then you add when you expect to see the person again.

In English, it is similar to saying Goodbye, see you tomorrow.

Here ci is a pronoun meaning something like each other or one another.

So ci vediamo literally means we see each other.

In natural English, though, we usually translate it as see you rather than we see each other.

This is very common in Italian. The present tense is often used for the near future, especially when there is a time word that makes the future clear.

Since domani already tells you the action happens tomorrow, Italian does not need a future form here.

So:

• Ci vediamo domani = literally present tense
• but meaning = we’ll see each other tomorrow

English does something similar sometimes, as in I’m leaving tomorrow.

Not if you mean see you tomorrow.

The ci is important in ci vediamo because it gives the idea of seeing each other. Without it, the phrase sounds incomplete or wrong in this context.

So use:

• Ci vediamo domani = correct

not:

• Vediamo domani = not correct for see you tomorrow

However, vediamo domani might appear in a different structure if something else is implied, but not as a normal farewell.

Yes, that is the literal structure.

Italian often uses this kind of expression where English prefers see you. So the grammar is a little different, but the everyday meaning is the same.

A very close breakdown is:

• ci = each other / ourselves / us, depending on context
• vediamo = we see
• domani = tomorrow

So literally: we see each other tomorrow
Naturally: see you tomorrow

Yes. Domani ci vediamo is also correct.

The most neutral order is:

• Ci vediamo domani

If you move domani to the front:

• Domani ci vediamo

you give a little more emphasis to tomorrow.

Both are natural, and both are commonly used.

A simple English-friendly guide is:

• arrivederci → ah-ree-veh-DER-chee
• ci vediamo → chee veh-DYAH-mo
• domani → doh-MAH-nee

A few useful pronunciation notes:

• ci is pronounced like chee
• ce/ci in Italian usually sound like che/ch-ee
• the stress is on:
  • arrivedERci
  • vediAmo
  • domAni

So the whole sentence sounds roughly like:

ah-ree-veh-DER-chee, chee veh-DYAH-mo doh-MAH-nee

It can be either, depending on context.

Often it means there really is an expectation of meeting tomorrow. But it can also be used as a friendly, natural farewell when tomorrow is the next normal time you will see the person, such as at school or work.

So it does not always sound like a formal appointment. Very often it just sounds warm and natural.