The term "fusion bomb" is generally used to refer to a thermonuclear weapon that explodes through a fusion reaction. However, there are several synonyms that can be used to describe such a weapon. One commonly used term is "hydrogen bomb," which reflects the fact that the fusion reaction typically involves isotopes of hydrogen. Other synonyms may include "thermonuclear bomb," "fusion weapon," and "H-bomb." Each of these terms carries its own nuances and connotations, but all refer to a devastating weapon that relies on nuclear fusion to create a catastrophic explosion. Despite its destructive power, the technology behind fusion bombs remains a subject of ongoing scientific research and development.