Word lists
Most common wordsFamiliar words with very high recognition rates.Rare wordsWords many readers may not recognize.Rarest wordsObscure words with low recognition rates.Academic wordsSchool, research, and analytical vocabulary checked for reader familiarity.SAT vocabulary wordsVocabulary-study words with recognition estimates.GRE vocabulary wordsAdvanced vocabulary with recognition estimates.Words known by about 90 percentWords near the line between broadly familiar and less universal.Words known by about 75 percentWords many readers know, but many others may not.Words known by about 50 percentWords where reader familiarity is genuinely uncertain.Words known by under 25 percentVery obscure words, usually limited to specialist contexts.Commonly known hard wordsLong or academic-looking words that many readers still know.Surprisingly rare wordsWords that look useful but are less widely known than they may seem.