E4F字根字首字尾字典 for Android download

Product summary

E4F 字根字首字尾字典 is an Android app built to help learners grow their English vocabulary by dissecting words into parts and linking related terms. First released in 2012, the program maintains a large lexicon—well beyond 100,000 headwords—and a network of roughly 15,000 lexical connections to support associative learning. Its design emphasizes visual decomposition of complex words and a “family tree” view that makes discovering related vocabulary faster.

Core capabilities

Extensive morpheme reference: an organized index of prefixes, roots, and suffixes to clarify word formation and improve retention.
Motivational play modes: game-style exercises and challenges that help sustain study momentum.
Flexible practice controls: set custom study ranges and focus areas to match your goals and time.
In-app annotation: save notes and examples for individual entries to personalize review.
Tracked progress for individuals: monitor words you’ve mastered and those needing more practice.

Who benefits most

The app is suitable for a broad range of learners, from high school students to adults preparing for standardized English tests such as TOEFL and GRE. It’s particularly helpful for exam takers and anyone who prefers a structural approach to vocabulary—breaking complex words into smaller, memorable pieces and using relationships between words to expand knowledge quickly.

Learning approach and tools

The application leverages a combination of visual breakdowns and associative mapping. Long or unfamiliar words are split into recognizable parts so their meanings become easier to infer. The family-tree feature links words that share common morphemes, speeding up retention by showing how vocabulary items relate and evolve.

Recommended paid alternative

If you prefer a different paid option, consider CAIIB Practice Exams Pro — a focused exam-prep app with polished practice tests and performance analytics designed for concentrated test rehearsal.

Conclusion

Overall, E4F offers a structured, morpheme-centered path to vocabulary growth, complemented by personalization, gamification, and a large lexical database—making it a practical tool for students and test-focused learners alike.

Technical

Title

E4F字根字首字尾字典

Requirements

Android

Language

English

Available languages

Chinese (Simplified)
English

License

Free

Latest update

2026-01-27

Author

E4F

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User Reviews

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