/ Dictionary / Index F firn: Meaning and Definition of Find definitions for: firn Pronunciation: (fērn), [key] — n. névé. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. firmware firnification 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