language sign language http://id.loc.gov/authorities/subjects/sh85122390 https://en.wikipedia.org/wiki/Category:Sign_language https://en.wikipedia.org/wiki/Category:Sign_languages https://en.wikipedia.org/wiki/Sign_language https://homosaurus.org/terms/signLanguage https://www.wikidata.org/wiki/Q34228 P117 Any of various languages that use the visual-manual modality to convey meaning. Sign languages are expressed through manual articulations in combination with non-manual elements. Sign languages are full-fledged natural languages with their own grammar and lexicon. Sign languages are not universal and they are not mutually intelligible with each other, although there are also striking similarities among sign languages. HV2474-HV2476 E98.S5 sign languages signed language language