n. a self-driven express train of one or more coaches travelling daily between two cities.
See also: railiner
- 1958  Mr. Herridge said he had been informed that communicable-disease patients could be carried in the baggage section of the Budd cars--or dayliners--on the CPR'S Kettle Valley run in British Columbia.
- 1965  Railroad enthusiasts . . . got a look at the Canadian National Railway's new dayliner Saturday.