/ Dictionary / Index A agelong: Meaning and Definition of Find definitions for: age•long Pronunciation: (āj'lông", -long"), [key] — adj. lasting for an age. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: agelong (Thesaurus) ageless agemate Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language