Two-Handed Alphabet

A manual alphabet in which most letters are formed using both hands, typically with one hand acting as a base and the other as an articulator. Two-handed alphabets are used in Auslan, British Sign Language, and New Zealand Sign Language (the BANZSL family), in contrast to the one-handed alphabets used in American Sign Language and many European sign languages. The two-handed structure affects legibility, coarticulation, and the design of signing-avatar and learning technologies - resources built for one-handed alphabets cannot be reused directly.