iPaddle Vocabulary Builder App Web Version. AI-empowered Personalized Vocabulary Building Tool. 40,000 English Word Dictionary Inside. Ideal For Test Prep - GRE, SAT, GMAT, TOEFL, IELTS, tailored for daily fast improvements. Super learning curve boosted with state-of-art proven linguistic experts research results. Powerful big-data-enabled analytical tools to turn your weak spots to strength easy & fast. 40,000+ English words w/ definition, audio, picture, 100,000+ example sentences from authori