Learn vocabulary with scientifically spaced repetition based on the 17-day GRE method, featuring 8 review intervals and automatic reminders. View word roots and affixes. Edit definitions and examples.
by Joseph Works Limited★ 4.82,592 ratingsEducationFreeData updated 2026-09-11
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Learn vocabulary using the Ebbinghaus forgetting curve theory and personalized memory sequences. Track word mastery with spaced repetition. Access audio pronunciations, definitions, examples, and word comparisons.