/ Dictionary / Index A all-day: Meaning and Definition of Find definitions for: all-day Pronunciation: (ôl'dā"), [key] — adj. taking up, extending through, lasting for, or occurring continually during a day, esp. the hours of daylight; daylong:Cf. an all-day tour of the city; an all-day lollipop. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. all clear allecret Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language