BANZSL

BANZSL, or British, Australian and New Zealand Sign Language, is the language of which British Sign Language (BSL), Auslan and New Zealand Sign Language (NZSL) may be considered dialects. These three languages may technically be considered dialects of a single language (BANZSL) due to their use of the same grammar, manual alphabet, and the high degree of lexical sharing (overlap of signs). The term BANZSL was coined by Trevor Johnston and Adam Schembri.

BSL, Auslan and NZSL all have their roots in a deaf sign language used in Britain during the 19th century.

American Sign Language and BANZSL are ostensibly unrelated sign languages, and share far fewer signs. However there is still a significant overlap, probably due largely to relatively recent borrowing of lexicon by signers of all three dialects of BANZSL, with many younger signers unaware which signs are recent imports.

Auslan, BSL and NZSL have 82% of signs identical (using concepts from a Swadesh list). When considering identical as well as similar or related signs there are 98% cognate signs between the languages. By comparison, ASL and BANZSL have only 31% signs identical, or 44% cognate.

The term BANZSL is not meant to replace the terms BSL, Auslan and NZSL. While each dialect retains its individuality, they may be referred to collectively as BANZSL.