Terrapene is a word that refers to a genus of turtles commonly found in North America. Synonyms for terrapene are few because this is a scientific term that describes a specific type of turtle. However, some related words that describe turtles in general include chelonian, tortoise, and turtle. Chelonian is a broader term that includes both turtles and tortoises, while tortoise refers to a specific type of land-dwelling chelonian. Turtle, on the other hand, is a more general term that can refer to any of the species within the order Testudines. Despite these related terms, terrapene is still the most accurate term to use when describing the specific genus of North American turtles.