There are more than 100 different sign languages in the world, with new ones constantly emerging. An exact number is hard to pin down, because some sign languages are limited to small villages, communities, or even families. Others, such as American Sign Language, span entire countries. There is a variety of sign language called International Sign, but it is not as complex as a full language. Instead, it functions as a simplified way for Deaf people with different backgrounds to communicate.
Wearable tech to decode sign language
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Key Facts In This Video
See how the word "sorry" looks different in different sign languages: 00:48
See how the phrase "good job!" looks different in different sign languages: 02:01
Watch speakers of Japanese, American, and French sign language demonstrate the differences between the languages in full sentences: 02:40
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