languages (linguistics)
type: Concept
narrower: sign language

communication aids
type: Concept
narrower: sign language

manual communication
type: Concept
narrower: sign language

linguistic typology
type: Concept
narrower: sign language

American Sign Language
type: Concept
broader: sign language

sign language
type: Concept
broader: languages (linguistics)
broader: manual communication
broader: communication aids
broader: linguistic typology
narrower: American Sign Language
narrower: British Sign Language
definition: Sign language is a means of communication through the use of body movements, gestures, and facial expressions. It could be described as plainly as pointing, shrugging, and grimacing or could be as complex as a combination of coded manual signals or signs. [Source: Encyclopedia of Disability; Sign Language]

British Sign Language
type: Concept
broader: sign language

concepts
type: Collection
type: ConceptGroup
member: sign language