Ivysaur is a popular Pokemon species that is widely recognized among fans of the franchise. While there are no synonyms for the word "Ivysaur" as it is a unique name given to this particular species, there are similar Pokemon species that share some characteristics with Ivysaur. These Pokemon include Bulbasaur, Venusaur, and Meganium. Bulbasaur is the pre-evolution form of Ivysaur, while Venusaur is the evolution form and Meganium is a different species altogether but shares similar physical attributes and movesets. These Pokemon are all grass-type species and can be found in various Pokemon games, anime, and manga.