There are no absolute rules for when to use a hyphen or when to write a prefixed word as one whole word (see the examples in the table). A good learner’s dictionary will tell you how to …

Adding a prefix to the beginning of an English word changes it to a different word. For example, when the prefix un- is added to the word happy, it creates the word unhappy. The word prefix …

Feb 6, 2023 · For example, in the word disappear, dis- means “do the opposite,” and the root word -appear means “to be visible.” Disappear means “opposite of being visible” — to no …

May 18, 2025 · Understanding the meanings of common prefixes can help us deduce the meanings of new words. This table defines and illustrates 36 common prefixes.

Oct 29, 2025 · Discover the meaning and use of prefixes in English! Learn common prefixes like un-, re-, pre-, and dis- with examples to expand your vocabulary and improve your word …

Below is a list of widely used prefixes, their meanings, and example words. Suffixes are letter groups added to the end of a word to change its meaning or word type (like noun, verb, …

Jul 8, 2025 · The prefix definitions and examples below show how a variety of prefixes affect the meaning of root words. If you want to learn more about prefixes, follow the links at the end for …