/ Dictionary / Index F F.A.L.N.: Meaning and Definition of Find definitions for: F.A.L.N. Pronunciation: [key] Armed Forces of National Liberation: a militant underground organization whose objective is independence for Puerto Rico. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Falmouth false Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language