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