50 Examples of Prefixes and Suffixes, Definition and Examples PREFIXES Prefixes are used to change the meaning of a word. A syllable word or group of syllables added to the beginning of a word. Prefixes help to add meaning to words and make it possible to create new words that are easily understood everywhere. Understanding a few prefix examples will help you understand the logic of new words and use them appropriately. For example, consider the prefix de-. This prefix means getting ... Learn 100 prefixes and suffixes words list in English to build vocabulary, understand spelling patterns, and see how words are formed. Learn what prefix and suffix are, how they change the meaning and part of speech of words, and how to add them correctly. See lists of common prefixes and suffixes, and rules for adding them with examples. Learn all about prefixes and suffixes in English with clear definitions, examples, spelling rules, and tips to expand your vocabulary and improve your language skills.