Vocabulary knowledge is critical to reading comprehension because words carry most of the meaning in a story.
Sometimes, just one critical word can make all the difference in understanding what is happening in the story, or what a question on a test is asking. When my students get a question wrong, I have them read it to me. 9 times out of 10 there is just one key word that they either can’t read, or they can read it but do not know what the word means.
The following are excerpts from www.Vocabulary.com: