There are several synonyms for nuclear arm, and they all refer to weapons that utilize nuclear energy as their source of destruction. Some of these synonyms include nuclear weapon, atomic bomb, hydrogen bomb, thermonuclear bomb, and nuclear warhead. These weapons are highly destructive and can cause catastrophic damage to entire cities and populations. The use or threat of nuclear arms has been a major concern for world leaders, and treaties have been enacted to limit their production and use. Despite these efforts, the possibility of nuclear war remains a grave threat to global security and stability.