
Free
About
Learn the 850 core English words selected by linguist Charles Kay Ogden — the foundation of Basic English communication.
FEATURES
• 850 carefully curated vocabulary words
• Flashcard quiz with swipe gestures
• Learning progress tracking with daily streaks
• Star words for focused review
• 5 beautiful themes: Clean, Warm, Night, Paper, Play
• Chinese and Japanese translations included
• Works fully offline — no internet required
ABOUT BASIC ENGLISH 850
In the 1930s, linguist Charles Kay Ogden identified 850 words sufficient to express any idea in English. Mastering these words provides a powerful foundation for English
communication.
LEARNING APPROACH
Browse words by category, study details with example sentences and collocations, then test yourself with the flashcard quiz. Your progress is saved automatically on your device.
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What's New in basicEnglish850
1.0.1
May 29, 2026
Example sentences now always show the original English text alongside the translation.




