Zubat is a Pokemon species, and as such, there aren't any true synonyms for the word in the traditional sense. However, there are several other Pokemon species that resemble Zubat to some extent. For example, Golbat is an evolved form of Zubat, and has a similar appearance albeit with a larger wingspan and longer fangs. Crobat is also somewhat similar, but with more pointed ears and a longer, more curved snout. Additionally, other bats or bat-like creatures such as Nosferatu and Swoobat could be considered similar in appearance to Zubat. However, none of these can truly be considered synonyms for the word "Zubat", as they are all distinct species.