/ Dictionary / Index F fir: Meaning and Definition of Find definitions for: fir Pronunciation: (fûr), [key] — n. any coniferous tree belonging to the genus Abies, of the pine family, characterized by its pyramidal style of growth, flat needles, and erect cones. the wood of such a tree. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fir (Thesaurus) fiqh Firbolg Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language