Sorry, I do not wanna misunderstood Sir or even worst.
Your problem is NOT vocab knowledge. Your problem is the understanding of the overall meaning of the sentence.
The only way to boost the verbal part of this test, which is QUITE difficult (the legend that is easier than the GMAT is a relic of the past) is to improve your English.
In the short run even if you know AL the vocabs of this world then what: if you do not grasp the sentence, what is going on, its meaning knowing a bunch of words will NOT save your day. This is the truth that ALL the prep companies do not tell you. They teach you: improve your vocabulary and then you will get the perfect verbal score. Never heard a bigger lie than this.
It is also true that to know a lot of words maybe and I say maybe you could nail some SE more because they are the easier if you do know a lot of words: using the pair strategy. However, this is not true for the blanks questions and for RC and CR.
My advice is to improve your understanding of English. This could come in handy. No shortcuts. Use this
https://gre.myprepclub.com/forum/gre-impro ... 14903.htmlAlso, install Grammarly,. it is free and when you double click on a word (highlight it) on any page on the internet you have the meaning.
https://www.grammarly.com/Regards