Language disorders involve problems processing linguistic information that can affect grammar, semantics, and other aspects of language. They can be receptive, involving comprehension issues, expressive, involving production problems, or both. Common language disorders include specific language impairment and aphasia. The document goes on to describe receptive language disorders which impact understanding language inputs, expressive disorders affecting output of language, speech disorders, communication disorders, and several specific types of language disorders like dyslexia, dysgraphia, and their symptoms.