Where does this definition of tone language come from?
This entry for tone language is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is tone language a noun, verb, or something else?
In this entry, tone 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.