what is the size of the average american vocabulary
When numbers are given, they vary wildly based on what is being measured, where the study was conducted, when it was conducted and the sample size. Some say that the average American's vocabulary is 10,000-12,000 words. Others say it's 60,000+ words. Much of the data is anecdotal. Much of it is dated (many numbers are taken from a 50 year old, U.S. study).