Misunderstood word - no. There are lot of reasons why people don't understand something, and there are a lot of methods to help. Sometimes a picture helps. I would get nowhere with clay, this is silly. Other people may have other methods that are as good.
Books generally bring pictures.
Looking up words is only relevant if you really don't know what a word means, not if you haven't understood the concept. The best example of the success of Study Technology are scientologists themselves. David Miscavige, the current Nr. From the alleged 8,000,000 scientologists, not a single one is known for a break-through advancement in science. And scientologists on the usenet and in the real world are unable to participate in communication about scientology itself.