1. Explore (casual web searching / keywords)
2. Scholarly conversations (library databases: articles)
3. Support arguments (source citation)
4. Drafts & revisions (librarians & Writing Center)
Fill out the keyword sheet to explore wording that is used to describe your topic.
A simple tool such as a thesaurus may allow you to find keyword variations that can be used to search the library catalog, article databases, etc.
In addition to the link to Thesaurus.com below, MS Word has a built-in thesaurus: