sign language

noun

1
: any of various formal languages employing a system of hand gestures and their placement relative to the upper body, facial expressions, body postures, and finger spelling especially for communication by and with deaf people
But true sign languages are in fact complete in themselves: their syntax, grammar, and semantics are complete, but they have a different character from that of any spoken or written language.Oliver Sacks
Sign language relies mainly on the signer's hand, but facial expressions and body movements are also important.Mark Prigg
2
: an unsystematic method of communicating chiefly by manual gestures (as by people speaking different languages)
I decided to cadge a lift from a Lebanese who only spoke Arabic, so we had to converse in sign language.Robert Fox

Examples of sign language in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In a clever twist unveiled when Walker insists on talking to Bernard in IT, it’s revealed that Mechanical workers practice a special form of sign language to communicate amid the droning machines and that Bernard was mistaken for taking the conversation between Walker and Knox at face value. Jeff Spry, Space.com, 20 Jan. 2025 Content is incomplete without accessibility like accurate and synchronized captions and transcripts, sign language interpreters, audio descriptions, and alt text and image descriptions. Toby Wong, Forbes, 3 Dec. 2024 In addition to his film cameo as Kuku in Kung Fu Panda 3 alongside his mom and siblings, Knox, now 16, is carving out his own interests — one of which is learning sign language. Jordana Comiter, People.com, 19 Nov. 2024 With a tip from Hyuk-jin and a hint in the form of a major donation Sa-eon made to a sign language school in her name, Hee-joo travels to Argan to find her husband. Kayti Burt, TIME, 4 Jan. 2025 See all Example Sentences for sign language 

Word History

First Known Use

1824, in the meaning defined at sense 1

Time Traveler
The first known use of sign language was in 1824

Dictionary Entries Near sign language

Cite this Entry

“Sign language.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sign%20language. Accessed 30 Jan. 2025.

Kids Definition

sign language

noun
1
: a formal language using a system of hand movements for communication (as by the deaf)
2
: a way of communicating mainly by hand and arm movements as often used by people speaking different languages

Medical Definition

sign language

noun
: any of various formal languages employing a system of hand gestures and their placement relative to the upper body, facial expressions, body postures, and finger spelling especially for communication by and with deaf people
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