Where does this definition of be prone to come from?
This entry for be prone to is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is be prone to a noun, verb, or something else?
In this entry, be prone to is tagged as 2v..
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.