Barker Creek’s Homophones, Synonyms & Antonyms Grammar Activity Book can help you explain what a homonym is in one simple sentence. It does the same for synonyms and antonyms as well. This activity book can also give your students several memorable examples of each. Your children will be able to confidently read and write these three types of words once they complete the exercises in this Reading FUNdamentals activity book. This is one of nine titles in the top-selling Reading FUNdamentals book series. 48 reproducible activity pages. Coordinating poster available. Search: Barker Creek Grammar Posters.