/ Dictionary / Index F F.R.G.S.: Meaning and Definition of Find definitions for: F.R.G.S. Pronunciation: [key] Fellow of the Royal Geographical Society. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: frgs (Thesaurus) F.R.G. Fri. Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language