Where does this definition of behind sb.'s back come from?
This entry for behind sb.'s back is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is behind sb.'s back a noun, verb, or something else?
In this entry, behind sb.'s back is tagged as 2adv..
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.