Formal:
* ሰላም (Selam) - This is the most common and formal greeting, similar to "hello" or "good day".
* ሰላም ንዓ ኩሉ (Selam ne'a kulu) - This translates to "Peace be with you", and is a more formal and respectful greeting.
Informal:
* ሰላም (Selam) - This is also used informally, but often followed by a person's name or a specific greeting.
* ኣሰላም ዓለይኩም (Assalamu alaykum) - This is a common greeting in Tigrinya-speaking Muslim communities, and is similar to the Arabic greeting "Assalamu alaykum wa rahmatullahi wa barakatuh."
Other greetings:
* ንሓደ ሓደ (Nehade hade) - This is a more casual greeting, meaning "How are you?"
* ከመይ ኣሎኻ (Kemi aloka)? - This is a more formal way of asking "How are you?", literally meaning "How are you?"
The best way to choose the appropriate greeting depends on the situation and your relationship with the person you are speaking to.