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