Words are probably the most important building blocks of communications. They capture elementary concepts, things, names, actions, and characteristics. Some dogs can understand a vocabulary that includes a couple hundred words. Humans are far more capable intellectually. Depending on age, education, and environment, we have vocabularies that range from many hundreds to many thousands of words. What separates humans from other life forms – and it is a huge quantum leap – is that we can take these thousands of words and compose them into sentences to make observations and value judgments, express opinions, state facts, ask questions, and communicate other information to other people. A collection of sentences can then be composed to tell a story, discuss a quandary, describe an experience, or develop a more complete description of some topic.