“semantics: The study of words and sentences and their meanings. An individual with a weak vocabulary may be considered to have a semantic disorder. An individual with a semantic disorder may understand concepts but have difficulty finding the word to express it. Informal activities such as quizzing verbal opposites, word categorization, and classification tasks can be useful ways in which to assess semantic skills.”
Excerpted from: Turkington, Carol, and Joseph R. Harris, PhD. The Encyclopedia of Learning Disabilities. New York: Facts on File, 2006.