Suffixes are words that can be added to the end of another words to change the meaning or slightly alter the meaning. When the suffix –able is added to the end of a word, it usually means that you can do something. For example, a book that is readable means that a person can read that book. Give your kids some more examples and then look at this simple worksheet. Read the sentences together with your kids, and check the words that have –able at the end.