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