, capable of discussing almost any topic in detail. For comparison, most native-speaking high school graduates know between 20,000 and 40,000 words. Notable Word Lists & PDF Resources

It is vital to understand diminishing returns. The Pareto Principle (80/20 rule) applies brutally to vocabulary:

: The top 1,000 words alone often account for roughly 85% of spoken conversation. Reaching 10,000 words allows you to transition into the "advanced" category, where you can understand nuanced academic and professional texts.

Your PDF has two kinds of words: