sign language

noun

1. Also called sign. any of several visual-gestural systems of communication, especially employing manual gestures, as used among deaf people.

2. any means of communication, as between speakers of different languages, using gestures.

sign language

noun

1. another word for signing

2. any system of communication by manual signs or gestures

Word History and Origins

Origin of sign language¹

First recorded in 1840–50