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