Sign Language List with sounds

Sign Language Dictionary is a handy application for learning the basics of sign languages widely used.
it is a free application that includes

American Sign Language. (ASL)
Numbers Sign Language 123.
British Sign Language .(BSL)
Braille.
German Sign Language. Deutsche Gebärdensprache is the sign language of the deaf community in Germany.

These signs are very helpful if you want to communicate with Deaf people or want to make someone understand something from distance.