Baron Lister is a quite uncommon term that is not normally associated with a known synonym. However, in the context of history, a "baron" can be interchanged with the titles of "lord" or "nobleman." Therefore, another way to refer to Baron Lister is to call him Lord Lister or Nobleman Lister. Alternatively, another possible synonym for Baron Lister might be Sir Joseph Lister, as he was a British surgeon who was granted a baronetcy in recognition of his contribution to medicine. Overall, while there may not be an exact synonym for Baron Lister, there are a few different titles that can be applied to him depending on the situation.