/ Dictionary / Index F fin. sec.: Meaning and Definition of Find definitions for: fin. sec. Pronunciation: [key] financial secretary. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fin ray Finsen Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language