Articulation refers to the verbal production of speech sounds. An articulation disorder is a speech sound disorder characterized by sound omissions, substitutions, or additions which make the speaker difficult to understand. (Ex: saying /f/ for “th”, /y/ for l). Articulation disorders may be caused by abnormal oral structures or weakness. Learning to talk is a difficult task and speech sound errors during the early years is normal. If speech errors occur past the age of five, a child may have an articulation disorder and benefit from a screening or evaluation by a Speech-Language Pathologist.