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