Vocabulary - AI-Powered Smart Word Learning
Combine AI voice synthesis and spaced repetition algorithm to make English vocabulary learning more scientific and efficient
Try NowMultiple Word Banks
Supports various word banks including middle school, high school, CET4, CET6, postgraduate, TOEFL, SAT, etc.
AI Voice Synthesis
Powered by Piper TTS technology, offering 904 different voice options with high-quality pronunciation
Spaced Repetition
Based on Ebbinghaus forgetting curve, scientifically schedules review times to improve memory efficiency
Interactive Learning
Click to mark known words, right-click for detailed definitions, hover to pronounce
Local Storage
All learning records stored locally in LocalStorage, protecting privacy without internet connection
Completely Free
Completely free to use, no registration required, ready to use
How to Use
Choose Word Bank
From middle school to SAT, choose the right word bank for your learning needs
Mark Words
Click to mark mastered words, system automatically tracks learning progress
Scientific Review
Review words at optimal times according to the forgetting curve reminders
Frequently Asked Questions
How to enable AI voice feature?
Check the "Use AI Voice" option in the left panel. First-time use requires downloading about 75MB model file. After loading, you can choose from 904 voices.
How does the forgetting curve work?
The system reminds you to review based on Ebbinghaus forgetting curve at 1, 3, 7, 14, 30, 60, and 120 days. Each review is recorded and the next review time is automatically adjusted.
Will learning records be lost?
All learning records are saved in browser's LocalStorage. They won't be lost unless you clear browser data. Regular export backup is recommended.
Which word banks are supported?
Currently supports middle school, high school, CET4, CET6, postgraduate, TOEFL, SAT, etc. Word banks are from open source projects and continuously updated.
Can it be used offline?
After the voice model is automatically downloaded, it can be used completely offline. All features run locally in the browser without internet connection.