Where does this definition of upset stomach come from?
This entry for upset stomach is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is upset stomach a noun, verb, or something else?
In this entry, upset stomach is tagged as 2n..
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.