Where does this definition of concern with come from?
This entry for concern with is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is concern with a noun, verb, or something else?
In this entry, concern with is tagged as 2v..
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.