/ Dictionary / Index T Third Worlder: Meaning and Definition of Find definitions for: Third' World'er Pronunciation: (wûrl'dur), [key] — (sometimes l.c.) a citizen of a Third World country. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Third World thirl Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language