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