Interlinguistics refers to the study of languages and the means of communication between people from different linguistic backgrounds. Some synonyms for interlinguistics include language science, linguistic diversity, language studies, and cross-cultural communication. These terms often focus on the various aspects of language and how they impact communication, both within and across cultures. Other related terms include translation studies and language planning, which emphasize the practical aspects of language use and how to make communication more efficient and effective. Overall, interlinguistics is an important field that helps us understand the diverse ways in which language shapes our lives and allows us to communicate with one another.