A small piece of metal (usually lead) used as ammunition for guns, pistols, and other firearms
Polisi alipiga risasi moja hewani ili kuwatia watu woga.
— The policeman fired one bullet into the air to scare people.
Risasi ilipenya ukuta na kumkumba mtu aliyekuwa nyuma yake.
— The bullet penetrated the wall and hit the person behind it.