Where does this definition of conventional letter come from?
This entry for conventional letter is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does conventional letter appear elsewhere on Lughet?
Yes — conventional letter appears under other sources or language pairs in Lughet's collection. See the list below.
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.