Have you ever wondered how many words you actually know? Just yesterday I came across this wonderful online resource that allows you to find out the approximate number of words in your active vocabulary. Actually, one of the people I follow on twitter challenged us to learn the extent of our vocabulary. She had a little over 5,000 words, so I got really interested. My number ended up being 22,500 which in a way boosted my self-esteem since an average native speaker's range is anywhere between 20,000-40,000 words. However, I think I should develop it to 30,000 by the end of next school year. What about you? How many words do YOU have in your vocab?