Vocabulary tool
Prefix & suffix vocabulary builder
You do not need to memorise every academic word one by one. Prefixes, suffixes, and word families help you infer meaning and produce cleaner paraphrases.
Interactive practice lab
Turn Prefix & suffix vocabulary builder into active practice.
Short activities built directly from this vocabulary tool. Drag, decide, match, and recall until the language becomes usable.
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modes done
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XP per mode
Complete a mode to earn XP and lock in the skill.
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Quick decision
Match the pairs
Connect each prefix with the correct meaning.
anti- — choose the matching meaning.
Reference library
Study the examples, then replay the activity.
Use the full reference below when an answer in the practice lab feels uncertain.
High-frequency prefixes
| Prefix | Meaning | Examples |
|---|---|---|
| anti- | against | antisocial, antibiotic |
| co- | together | cooperate, coexist |
| inter- | between | international, interact |
| mis- | wrongly | misread, misunderstand |
| re- | again | rebuild, reassess |
High-frequency suffixes
| Suffix | Function | Examples |
|---|---|---|
| -tion / -sion | noun | education, decision |
| -able | adjective | reliable, measurable |
| -ity | noun | ability, complexity |
| -ive | adjective | productive, competitive |
| -ise / -ize | verb | organise, modernize |
Practice method
- Learn one word family at a time: analyse, analysis, analytical, analyst.
- Write one IELTS or TOEFL sentence with each form.
- Check whether the word is formal enough for writing or only natural in speaking.
Editorial details and primary sources
By FluentMock Editorial Team · Published 2026-06-13 · Updated 2026-06-28 · Official sources checked
- IELTS test format — IELTS
- IELTS scoring in detail — IELTS
- TOEFL iBT score breakdown — ETS
- TOEFL iBT test content — ETS
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