The primary purpose of using key vocabulary is to .

IDK if this the answer you were looking for but I hope this helps. Vocabulary is critical to reading success for three reasons: Comprehension improves when you know what the words mean. Words are the currency of communication. A robust vocabulary improves all areas of communication listening, speaking, reading and writing.

samuel gompers was an extremely important person in the american labor movement, being him an employee all his life he devoted himself to fight for the rights of his pairs, he believed they all had the right to have better thing and that they all were working for them but the factory workers were greedy, ambitions and socialist people for him who he didn't have a good concept of.

he gave so many speeches and led so many strikes and protest to fight for equality which he considered employers didn't want to accept, so he had an absolutely negative opinion of them.