The way I've seen it, atomic bomb and nuclear bomb are synonyms which refer to any sort of fission, boosted fission or fusion bombs. Fission bombs can be speci

The way I've seen it, atomic bomb and nuclear bomb are synonyms which refer to any sort of fission, boosted fission or fusion bombs. Fission bombs can be specifically referred to like that. Fusion bombs can also be called hydrogen bombs or thermonuclear bombs.