A prefix is a word that has like a smaller less of a word in front of it. For example copilot has a prefix which is the co part. If it helps, if a word has a prefix you can usually tell because without that prefix it is still a word, like, pilot. A suffix is easier, it is any word that ends with thing like "ing" or "able" (disable) "dom" (freedom) and "er" (dancer). Also, prefixes go at the beginning of a word and suffixes at the end. :)
