Displume is a rare word, which means to strip of feathers or to pluck. There aren't many synonyms for this word, and the few ones that exist are not very commonly used either. The most common synonym for displume is "defeather," which means to remove feathers from a bird or animal. Another synonym for displume could be "denude," which means to strip of something essential or important. Other words which could be considered synonyms for displume are "disarm," "strip," "ungird," "disrobe" and "unclothe." If you need to use synonyms for displume, it is best to use them contextually and judiciously to convey the intended meaning.