How big is your vocabulary?

This 5-minute probe samples ~25 words across frequency bands - from common to rare - and estimates your total vocabulary size with a confidence range.

For each word, tell us if you know it: Yes, Sort of, or No. Be honest - if you only sort-of recognize it without knowing the meaning, choose Sort of.

Your responses also feed your vocab model, so the tutor can adapt to your range from the start.