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