Hi,
Could anyone point me to a source that lists how many words - on an average - a native speaker must know at various levels / classes in an English speaking society (The U.S., U.K., Canada, Australia) ? Here are the two categories:
1. Students: entering junior high, highschool, college at various levels (B.S. / M.S. / Ph. D)
2. Jobs: laborer, office clerk, engineer, medical doctor, lawyer, journalist.
Thanks and Best Regards,
Hoa Thai