How Many Words in Your Vocabulary?
✦ The average educated adult knows roughly 20,000–35,000 word families
✦ Words are drawn from five difficulty tiers — from common to rare
✦ Two words in the test don't exist! They're there to keep you honest
✦ Harder words earn more points — guessing easy ones won't get you far
Choose the best definition, or select "I don't know this word."
Your estimated vocabulary size
▼ See Answers Below
Scores are estimates based on sampling methodology used in academic vocabulary research.
Individual results can vary ±15% from true vocabulary size.
Your Word-by-Word Breakdown
How old are you?
We'll compare your score to others your age — your result will be more meaningful.
