Here are some possibilities depending on the context:
* "Salve!" (pronounced "sal-vay") This is the most common greeting in Latin, meaning "be well" or "be healthy." It's a formal greeting used in most situations.
* "Ave!" (pronounced "ah-vay") This means "hail!" or "greetings!" It's a formal greeting used to address someone of higher status or a deity.
* "Quid agis?" (pronounced "kwee-d ah-gis") This literally means "what are you doing?" but it functions as a more informal "hello, how are you?"
It's important to remember that the Romans had a complex language with nuances that aren't always captured in direct translations. These are just a few examples to get you started.