1. Veloma: This is the most common way to say goodbye in Madagascar. It is pronounced "veh-loo-mah" and is used in both formal and informal settings.
2. Mandrakariva: This expression means "until the evening" and is used to say goodbye when someone is leaving for the day or for a short period of time. It is pronounced "mahn-drah-kah-ree-vah".
3. Mandrakizay: This expression means "until eternity" and is used to say goodbye to someone who is leaving for a long time or permanently. It is pronounced "mahn-drah-kee-zay".
4. Ho avy indray aho: This expression means "I will come back again" and is used to say goodbye to someone who is leaving but is expected to return. It is pronounced "ho ah-vee een-dray ah-ho".
5. Tongava soa: This expression means "come well" and is used to greet someone who is arriving. It can also be used to say goodbye to someone who is leaving, as a way of wishing them a safe journey. It is pronounced "tong-gah-vah soo-ah".
When saying goodbye in Madagascar, it is customary to shake hands with the person you are saying goodbye to. In some cases, people may also hug or kiss on the cheek, depending on the level of familiarity.