Prefix, Suffix & Root Words

Master Root Words, Prefixes & Suffixes — Now in Your Language

Unlock the building blocks of English. Prefix, Suffix & Root Words teaches you Latin and Greek root words, prefixes and suffixes, each with clear meanings, origins and real example words. Learn how words are built, decode words you've never seen before, and prepare for the SAT, GRE, ACT, TOEFL and IELTS with confidence.

NEW: LEARN IN YOUR LANGUAGE
English learners can now use the whole app in 10 languages: Spanish, Portuguese, Hindi, Bengali, Arabic, Indonesian, Vietnamese, Turkish, Japanese and Korean. The interface, root meanings, example-word glosses, articles and theme names appear in your language, right next to the original English, so you always learn the real English word. The app follows your device language, or you can pick one in Settings.

A root word is the most basic form of a word that can't be divided into smaller meaningful parts. Add a prefix at the beginning or a suffix at the end and you create whole new words. Learn the roots once and you'll understand thousands of English words.

486 Latin & Greek Roots
A complete, searchable dictionary of roots with meanings, language of origin and 1,565 example words. Filter by letter or search instantly.

Prefixes & Suffixes
Dedicated, searchable lists of common prefixes and suffixes with definitions and examples.

Flashcards
Flip through roots, mark what you know, and keep your daily study streak going.

Vocabulary Quiz
Test yourself with multiple-choice questions and review your quiz history to see your progress.

16 Themed Collections
Roots grouped by topic: Body & Health, Numbers & Quantity, Time & Order, Movement & Direction, Light & Color, Mind & Knowledge and more.

Word of the Day
A new root every day to build a lasting study habit.

14 Short Articles
What is a root word? Root words vs. base words, affixes explained, Greek vs. Latin roots, connecting vowels, word families, how to decode unfamiliar words, using roots on tests, and where English words come from.

Why you'll love it
• Perfect for students, teachers, ESL learners, writers and word lovers
• Great prep for the SAT, GRE, ACT, TOEFL, IELTS and spelling tests
• Fast search and a clean, distraction-free design
• Light & dark mode
• Works offline, no account needed

Premium
A one-time purchase unlocks the full quiz and removes all ads. No subscription.

Start learning the roots of English today and watch your vocabulary grow.