Representationalism is a philosophical position that emphasizes the role of mental representations in perception, cognition, and knowledge. However, there are several synonyms for the word representationalism that you can use to express a similar or related concept. These include epistemological realism, cognitive essentialism, mentalism, internalism, and idealism. Each synonym focuses on different aspects of the role of mental representations in knowledge and cognition. For example, epistemological realism emphasizes the objective reality of knowledge, while cognitive essentialism emphasizes the importance of innate cognitive structures. Similarly, mentalism focuses on the central role of mental states, while idealism emphasizes the importance of mental concepts over external reality.