Definiciones
1.NounAny of several natural languages, typically used by the deaf, in which words consist of hand shapes, motions, positions, and facial expressions.
2.NounThe sign language (sense 1) that is used locally or that is mistakenly believed to be the only one."I'm taking night classes to learn sign language."
3.NounSign languages (sense 1) considered collectively."There are some unique properties found in sign language compared to spoken language."
4.NounCommunication through gestures as a substitute for language, for example, between monks under a vow of silence or during trade amongst different linguistic groups.