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Humans have an instinctive need to communicate with each other, which we primarily accomplish through spoken language. However, this presents a challenge for deaf people, who struggle to learn and speak an auditory language. As a result, cultures have developed visual languages to replace spoken ones. While most people are aware of the existence of sign language, its complexity and history are not well-known.

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1. The Basic Definition

Sign language is a form of communication that primarily consists if different hand gestures to demonstrate different concepts. Most sign languages consist of both a manual alphabet, where different hand positions represent specific letters that allow the signer to spell out new or difficult words, as well as a complex vocabulary of more complex signs that represent words, phrases, and ideas. Some signs may also incorporate body posture and facial expressions.

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