Where does this definition of sign language come from?
This entry for sign language is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does sign language appear elsewhere on Lughet?
Yes — sign language appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.