sign language sign industry • sign manual · · · Info · Definitions · Synonyms · Characters · · sign language · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) language expressed by visible hand gestures. Synonyms: sign language, signing. · · Noun Definition 1 (adj) used of the language of the deaf. Synonyms: gestural, sign(prenominal), signed, sign-language(prenominal). · · Adjective Definition 1 Synonyms · · · signing · · Synonym 1 gestural · · Synonym 2 sign · · Synonym 3 signed · · Synonym 4 sign-language · · Synonym 5 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075