The document defines and provides examples for several words: - Overestimate means to estimate too highly. - Aspect refers to a quality or part of a situation. - Minority refers to a smaller number or part of a group that is less than half. - Sociologist is an expert who studies human society. - Expand means to become larger in size or amount. - Encounter means to meet someone without planning to. - Incident refers to an unusual, important, or violent event.