[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"content-seo:englishVocabularySize":3},{"description":4,"seo":5,"faq":8},"How many English words do you actually know? This vocabulary size test shows 48 words: 40 real words, eight from each of five frequency bands running from everyday basics to rare words like \"susurrus\", plus 8 invented trap words. Tick only the ones whose meaning you know. Your hit rate in each band is lowered by the share of fake words you ticked, then scaled up to an estimate between 0 and about 37,000 words, with a band-by-band breakdown and a shareable result card. It is the same yes\u002Fno checklist idea used in vocabulary research, kept short and for fun — not an exam or an official level.",{"ogTitle":6,"ogDescription":7},"English Vocabulary Test | How Many Words Do You Know? - Giggleus","Tick the English words you know from 48 and get a vocabulary size estimate from 0 to about 37,000 words. Made-up trap words catch over-claiming.",[9,12,15,18],{"question":10,"answer":11},"How is my English vocabulary size estimated?","From your hit rate in each of five frequency bands (8 real words per band). Each band's hit rate, minus your fake-word rate, is multiplied by that band's size and summed, giving a result from 0 to about 37,000 words, rounded to the nearest 100.",{"question":13,"answer":14},"Why are there fake words in the test?","Eight invented words (such as \"blorrent\" or \"snurtle\") catch guessing. If you tick 2 of the 8, every band's hit rate is lowered by 25 percentage points, so over-claiming pulls your estimate down.",{"question":16,"answer":17},"How many English words does a native speaker know?","There is no single figure; it depends on how words are counted. Research estimates for adult native speakers range from roughly 15,000–20,000 word families to around 40,000 dictionary lemmas. Treat your result as a rough position on this test's own scale, not a direct comparison.",{"question":19,"answer":20},"Can I convert my result to a CEFR level or exam score?","No. The test has no conversion table for CEFR, TOEIC, IELTS or other exams. It is a quick self-check of recognition vocabulary."]