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