When it comes to finding synonyms for the word "mininuke," one can consider a few options. One possible term is "miniature atomic bomb," which refers to a small explosive device designed to release nuclear energy. Other possibilities include "micro-nuclear device" or "small nuclear warhead," both of which convey the idea of a compact and potentially devastating weapon. Some may also use the term "pocket nuke" to describe a portable nuclear weapon, although this term is less commonly used. Ultimately, the choice of synonym will depend on the context in which the word is being used and the desired tone or emphasis.