You want to sure you are using the correct word to express your ideas. If you are not sure, you should check the definition in a dictionary.
Encyclopedias are a good place to start if you need an overview of a topic you are unfamiliar with. They will often include a bibliography of sources that you can consult for more information. The links below lead you to a selection of encyclopedia titles/collections that might be relevant to your Comm Studies assignments. Some of the links are to groups of titles from a single publisher--you can select those that seem appropriate to your topic.