I'm looking for the usage of adjective "down". I looked it up in the dictionary. What I found was "a down train"
I'd like to make a sentence with the phrase above. Is it O.K if I write "Which one is a down train?"? or "The down train will depart any minute"?
If I'm wrong, please correct them. or If you come up with other frequently used examples, please let me know
Thank you very much in advance.