English vocabulary size test

Estimate how many of the 10,000 most common English words you know. Your answers stay in your browser until the final step, and we store nothing about you.

About 46 English words, one at a time. Say whether you know each one. For some you will also pick its meaning, so guessing does not raise your score. It takes about two minutes and needs no account.

This is an estimate from a short sample of words, rounded to the nearest 100. It is not a certified language level.