BE850 Ogden's Basic English vs Basic 850

Say everything with just 850 words — that was the vision of linguist C.K. Ogden when he created Basic English in 1930. BE850 turns these 850 carefully selected core words into an elegant digital study handbook. Perfect for English beginners, young learners, ESL/EFL students, teachers, and anyone curious about the Basic English system. Five Clear Categories • Operations (100): verbs, prepositions, conjunctions • General Things (400): abstract nouns • Picturable Things (200): concrete, visible objects • Qualities (100): common adjectives • Opposites (50): paired antonym adjectives Bilingual Definitions Each word includes a Chinese definition, English explanation, example sentence, and Chinese translation of the example. UK & US Pronunciation Switch between British and American English speech. Tap to hear any word, definition, or example sentence read aloud. IPA Phonetics Both UK and US IPA transcriptions are shown for every word. Flashcard Practice Full-screen card mode: see the word on the front, tap to reveal the meaning. Filter by category, shuffle order, enable auto-speak. Swipe to mark words as "Got it" or "Review". Progress Tracking See your viewed, remembered, and review counts at a glance. Synonym Expansion Each word comes with 2–3 synonyms to broaden your vocabulary network. Simplified / Traditional Chinese Toggle between Simplified and Traditional Chinese display with one tap. Bilingual Interface Switch the app UI between Chinese and English at any time. Fully Offline All data is built into the app. No internet required, no ads, no sign-up. Learn anytime, anywhere — on your commute, in class, or on the go. --- Based on Charles Kay Ogden's Basic English (1930). The word list is in the public domain; definitions and examples are original.

Basic 850 is a calm, offline reference and learning app for the Basic English 850-word system — the essential words chosen to express almost anything in clear, plain language. No accounts. No subscriptions. No noise. Just the complete Basic English 850 word system, organized the way it was designed. FOUR CLASSIC CHAPTERS • Operations — the 100 core words that do the work of a sentence • Things (General) — 400 general nouns • Things (Picturable) — 200 concrete, picturable nouns • Qualities — adjectives and their opposites WHAT YOU CAN DO • Browse every word by its original category • Hear natural pronunciation with built-in text-to-speech • Search the list instantly — completely offline • Mark the words you know and keep track of your progress FREE TO START The full Operations chapter (100 words), pronunciation, and chapter search are free. Dark Mode is included. ONE-TIME UNLOCK — $2.99 Unlock all 850 words across four chapters, full-library search, and saved progress that stays with you. One payment, yours forever. No subscription, ever. WHO IT'S FOR • Intermediate English learners who want the most useful core words • Technical writers and plain-language enthusiasts • ESL teachers sharing a focused, authoritative list • Anyone who likes saying more with fewer words Everything works offline. Nothing about your learning is uploaded — your progress stays on your device.