Bulawa is a word that is used in some cultures to describe a special call or signal. It's kind of like when your mom yells your name to come inside for dinner or when your teacher rings a bell to let you know it's time to switch classes.
In some cultures, a bulawa is a special call that is used to gather people together for an important meeting or event. It can also be used to announce the arrival of an important person or to give a proclamation or order.
The bulawa can take many forms, depending on the culture. It might be a loud horn, a drumbeat, or even a series of whistles. Whatever form it takes, the bulawa is always important and should be listened to carefully.
So, think of the bulawa like a special signal that announces something important. It's like a secret code that only certain people know and only use for really special occasions.