Write your research question down. Identify the concepts in that question.
Example: How does aging affect memory loss?
The main ideas (or concepts) in this question are: aging and memory loss
Examples: aging, elderly, seniors, aged, older people, senescent, geriatric, etc.
This video shows you how to turn your research question into a search strategy. It was created by librarians at Central Carolina Community College, so they will reference resources at their library. However, the important part is at the beginning where they show you how to create search phrases.
Concept: An idea or theme.
Keyword: A word used to search for information in a search engine or library resource. A good keyword will relate to one of the main concepts of your research question. Using a keyword in a search will bring up articles that use that word in a significant or important way.
Synonym: A word or phrase that means exactly or nearly the same as another word or phrase.