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