A speech disorder refers to a problem with the actual production of sounds, whereas a language disorder refers to a difficulty understanding or putting words together to communicate ideas.
Speech disorders include:
Articulation disorders: difficulties producing sounds in syllables or saying words incorrectly to the point that listeners can't understand what's being said.
Fluency disorders: problems such as stuttering, in which the flow of speech is interrupted by abnormal stoppages, repetitions (stuttering), or prolonging sounds and syllables (stuttering).
Resonance or voice disorders: problems with the pitch, volume, or quality of the voice that distract listeners from what's being said. These types of disorders may also cause pain or discomfort for a child when speaking.
Dysphagia/oral feeding disorders: these include difficulties with drooling, eating, and swallowing.
Language disorders can be either receptive or expressive:
Receptive disorders: difficulties understanding or processing language.
Expressive disorders: difficulty putting words together, limited vocabulary, or inability to use language in a socially appropriate way.