This word is used as both a greeting and a question, similar to "How are you?" in English.
Here are some other ways to say hello in Tagalog:
* "Magandang araw po" (Good day) - This is a more formal greeting.
* "Magandang hapon po" (Good afternoon) - This is also a formal greeting.
* "Magandang gabi po" (Good evening) - This is a formal greeting.
* "Uy" (Hey) - This is a casual greeting.
* "Pare/Ate/Kuya" (Bro/Sis/Older brother/sister) - This is a very casual greeting used between friends or family members.
The best choice for you will depend on the context and your relationship with the person you are greeting.