<unk>  in children refers to problems with either:
Getting their meaning or message across to others (expressive<unk> , or
Understanding the message coming from others (receptive<unk> 
Some children only have an expressive<unk> . Others have a mixed receptive-expressive<unk> , meaning that they have symptoms of both conditions.
Children with<unk> s are able to produce sounds, and their speech can be understood.
Language disorder
Language delay
Nonverbal learning disorder
Speech disorder
Pragmatic language impairment
Speech sound disorder
Hearing impairment
Mixed receptive-expressive language disorder