The term "frag bomb" refers to an explosive weapon that's commonly used in military operations. However, there are several synonyms you can use to describe this weapon. For instance, you can refer to it as a fragmentation grenade, which is a hand-held explosive device that releases shrapnel and other bits of metal upon detonation. Alternatively, you may refer to it as a cluster bomb, which is another type of explosive weapon that releases smaller, secondary explosives upon impact. Other synonyms for frag bomb include incendiary bomb, phosphorous bomb, and smoke grenade- each of which has a unique purpose and effect on the battlefield.