How often would they have to use the word for it to be included in the list? For instance, in Portugal, I once had to buy a hinge. I looked the word up and went and bought one. I can still remember the word years later, but I only ever used it once- would this be included in my vocabulary?
To Tdol & MikeNewYork!
So an average native speaker has a vocabulary of about 10-15000 words, doesn't he? Saying vocabulary I mean his active words which he always carries in mind.
I read that Shakespeare and Churchill used the widest vocabularies of English writers.