Informal:
* "Até mais!" (Ah-tay my-ahs) - This is the most common and versatile way to say "see later." It can be used with friends, family, and even colleagues in casual settings.
* "Falou!" (Fah-loo) - This is a very informal way to say "see later," used mostly among friends.
* "De boa!" (Day bo-ah) - This literally means "at ease," and is used to express that you'll see the other person later, but you're not in a hurry.
Formal:
* "Até mais tarde!" (Ah-tay my-ahs tahr-jee) - This is a more formal way to say "see later." You might use this with a teacher, boss, or someone you don't know well.
* "Até breve!" (Ah-tay breh-vee) - This means "until soon" and can be used in both informal and formal contexts.
Other options:
* "Até amanhã!" (Ah-tay ah-ma-ny-ah) - "See you tomorrow."
* "Até depois!" (Ah-tay day-poy-sh) - "See you later."
The best way to choose the right phrase depends on your relationship with the person you're speaking to and the situation.