What Is A Good Vocabulary Size?

What Is A Good Vocabulary Size? Most adult native test-takers range from 20,000–35,000 words. Average native test-takers of age 8 already know 10,000 words. Average native test-takers of age 4 already know 5,000 words. Adult native test-takers learn almost 1 new word a day until middle age. What is vocabulary size in NLP? The num_words