ABSTRACT
Prefixes and suffixes are the first and last parts of certain words. Understanding the meaning of prefixes and suffixes can help people work out the meaning of a word, and is particularly useful when they meet specialist new vocabulary. Unsustainable is an example of a word containing a prefix and suffix. Words such as this are much easier to understand if one know how prefixes and suffixes affect word meaning. The chapter provides some practices for prefixes and suffixes. Prefixes change or give the meaning. Prefixes allow new words to be created (e.g. unfriend to delete a friend from social media). The examples for prefixes are: antibiotic, ex-president, intervention, macroeconomics, microscope, multinational and etc. Suffixes show the meaning or the word class (e.g. noun, verb). ER often indicates a person: teacher, gardener. And EE can show a person who is the subject: employee, trainee.
