Definition of sign language noun from the Oxford Advanced Learner's Dictionary


sign language

BrE BrE//ˈsaɪn læŋɡwɪdʒ//
; NAmE NAmE//ˈsaɪn læŋɡwɪdʒ//
[uncountable, countable]
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a system of communicating with people who cannot hear, by using hand movements rather than spoken words They communicate in sign language.
See the Oxford Advanced American Dictionary entry: sign language