Breadcrumb Home > Dictionary > Index F fourthly: Meaning and Definition of Find definitions for: fourth•ly Pronunciation: (fôrth'lē, fōrth'-), [key] — adv. in the fourth place; fourth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fourthly (Thesaurus) Fourth International Fourth of July ✖ Related Content Daily Word Quiz: ultimathule Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language