Definition & Meaning of "sign language"

What is "sign language"?

Sign language is a visual language that uses hand shapes, facial expressions, and body movements to convey meaning instead of spoken words. It is primarily used by deaf and hard-of-hearing individuals to communicate with one another and with those who understand sign language. Each sign language has its own unique vocabulary and grammar rules, which can vary between different countries and regions. For example, American Sign Language and British Sign Language are distinct languages with different signs and structures. Sign language allows for rich expression and effective communication, providing a vital means of interaction for the deaf community.