(~s)
1.
A ~ is a type of train or railway carriage which is extremely comfortable and luxurious. You can also refer to a ~ train or a ~ carriage. (BRIT)
N-COUNT: oft N n
2.
A ~ or a ~ car on a train is a railway car that provides beds for passengers to sleep in. (AM; in BRIT, use sleeping car )
N-COUNT: oft N n