Learn the meaning of common prefixes with quick-fire questions — the building blocks that unlock hundreds of words.
Example: overload
Prefixes are small word parts added to the start of a word that change its meaning — like un-, re-, pre- and anti-. Learn a handful and you can decode and build hundreds of words. This prefix quiz tests your knowledge one prefix at a time, with an example word as a hint.
Questions reshuffle every round so you can practise until each prefix is second nature. It's free, runs in your browser and is perfect for students, ESL learners and anyone strengthening their word-building skills.
Each question shows a prefix and an example word.
Choose what the prefix means from the four options.
See whether you were right, with a short explanation.
Finish for your score, then play again to improve.
Once you know that un- means 'not', re- means 'again' and pre- means 'before', you can work out the meaning of countless words you've never seen — a huge shortcut for reading and exams.
Prefix knowledge also improves your spelling and writing, because you understand how words are constructed rather than memorising each one in isolation.
re-
Sample outputagain / back
Example: rewrite.
anti-
Sample outputagainst / opposing
Example: antivirus.
The AllWordTools.com Team
Word-game specialists and language enthusiasts building fast, accurate tools that help millions of players find the right word. Last reviewed July 10, 2026.
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