Breadcrumb Home > Dictionary > Index F fortnightly: Meaning and Definition of Find definitions for: fort•night•ly Pronunciation: (fôrt'nīt"lē), [key] — adj., adv., n., pl. -lies. —adj. occurring or appearing once a fortnight. —adv. once a fortnight. —n. a periodical issued every two weeks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fortnightly (Thesaurus) fortnight Fort Orange TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: aspirant Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language