Where does this definition of deaf-and-dumb language come from?
This entry for deaf-and-dumb language is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is deaf-and-dumb language a noun, verb, or something else?
In this entry, deaf-and-dumb language is tagged as 2n..
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.