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