Definitions
There is 1 meaning of the phrase
Mail Train.
Mail Train - as a noun
A train that carries mail
Example Sentences
"The mail train arrived at the station on time."
"The mail train is usually filled with letters and packages."
"I always look forward to receiving mail from the mail train."
"The mail train is an important part of the postal service."
"The mail train departs from the central sorting facility."