Noun
(rail transport) A set of railway carriages dedicated for the use of the monarch or other members of a royal family.
A special train carrying royalty, including such vehicles.
Source: en.wiktionary.orgIt has a bedroom, decorated in light pastel shades, with a 3ft-wide single bed in one corner (there are no double beds on the Royal Train) made up with cotton sheets and woollen blankets. Source: Internet