Where does this definition of knuckle down come from?
This entry for knuckle down is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is knuckle down a noun, verb, or something else?
In this entry, knuckle down is tagged as v..
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.