/ Dictionary / Index D day-liner: Meaning and Definition of Find definitions for: day-lin•er Pronunciation: (dā'lī"nur), [key] — n. a train, boat, etc., having a regularly scheduled route during daylight hours. a passenger on a day-liner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. daylily day loan Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language