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