Prefixes and Suffixes
Prefixes are added to the start of a word and suffixes to the end, changing its meaning or grammatical function.
▶ Interact
Play with the controls to see the idea in action.
📘 Learn
Prefixes are added to the start of a word and suffixes to the end, changing its meaning or grammatical function.
- Un adds the opposite meaning
- Ful makes an adjective
- Both help to work out unfamiliar words
🧠 Quick quiz
Three questions. Score 2 or more to complete the topic.
What is Prefixes and Suffixes?
Within English, which covers grammar, vocabulary, reading, writing, poetry, drama and the skills for clear communication, this topic explains Prefixes and Suffixes. English topics help you read closely and write with purpose, so each one here explains a skill and shows how it works in a model text.
Check that you can explain Prefixes and Suffixes in your own words and give one example from everyday life. If you can do that, you have understood the core idea.
Understanding Prefixes and Suffixes helps you read texts more closely and write with more control, which earns marks in both reading and writing papers.
Prefixes and Suffixes in detail
A prefix is added to the beginning of a word and changes its meaning: un- (unhappy), re- (rebuild), dis- (disagree), pre- (prepare), mis- (mistake). A suffix is added at the end and may change meaning or word class: -ful (careful), -less (hopeless), -ness (kindness), -able (readable), -ly (quickly).
Adding them follows spelling rules, such as dropping a silent e or doubling a consonant. Knowing common prefixes and suffixes lets you work out unfamiliar words and expand your vocabulary, such as "unbreakable" = un + break + able. Many come from Latin and Greek.
How the interactive helps you understand Prefixes and Suffixes
Click a card to flip it and reveal the answer, then move on to the next one.
Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Prefixes and Suffixes.
Real-life uses and examples
- Support a point about Prefixes and Suffixes with a short, accurate quotation.
- Plan an essay paragraph by linking the technique to the reader’s response.
- Spot Prefixes and Suffixes when you read a poem, story or speech, then explain the effect it creates.
Common mistakes to avoid
- Naming a technique without explaining its effect on the reader.
- Quoting a long passage instead of picking a short, precise phrase.
- Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.
Frequently asked questions about Prefixes and Suffixes
What is Prefixes and Suffixes?
Prefixes are added to the start of a word and suffixes to the end, changing its meaning or grammatical function.
What are the most important points about Prefixes and Suffixes?
The main points are: Un adds the opposite meaning; Ful makes an adjective; Both help to work out unfamiliar words.
Why is Prefixes and Suffixes useful?
Understanding Prefixes and Suffixes helps you read texts more closely and write with more control, which earns marks in both reading and writing papers.
How can I practise Prefixes and Suffixes?
Open the interactive at the top of this page and change the controls one at a time. Predict the result before each change, then take the three-question quiz. A score of two or more marks the topic as complete on this device.
Which topics are related to Prefixes and Suffixes?
Related topics in English include Using a Dictionary and Thesaurus, Imagery and Sensory Detail, Point of View.