In any field of study, knowing what the terms and concepts mean is essential. If you are unsure or want to know more about a particular term, concept, theory or scholar, using the relevant dictionaries and encyclopedias will help. Also remember in Gender / Sexuality / Women's Studies that there are occasions when slang or colloquial langugage may used or there may be preferences for certain terms over others for the same phenomena and that such terms change over time. Depending on which historical period you study, your terminology may need to change. In short, please know your context and intended audience.