A railroad-train intended for the expeditious conveyance of passengers, mail, or parcels, and making few or no stops between terminal stations: distinguished from a local or accommodation train.(noun)
The Century Dictionary (Public Domain)
Use "express-train" in a sentence
"The story was an express-train barreling down the track, only no one in the audience knew where it was heading."
"More securities with the label subprime or Alt-A attached to them are deemed too controversial to own, particularly with the constant threat of express-train credit downgrades taking their ratings many notches lower."
"There was the expected blast; then the hillside shifted greasily under him, like a giant shrugging in uneasy sleep, and he heard the express-train rumble of sliding rock."