Where does this definition of the upper crust come from?
This entry for the upper crust is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does the upper crust appear elsewhere on Lughet?
Yes — the upper crust appears under other sources or language pairs in Lughet's collection. See the list below.
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.
