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