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.
You can look in a subject encyclopedia if you would like to find background or overview information about your topic. Several sources that might be useful for your assignment are listed below.