/ Dictionary / Index F firmer chisel: Meaning and Definition of Find definitions for: fir'mer chis"el Pronunciation: (fûr'mur), [key] — Carpentry. Carpentry. a narrow-bladed chisel for paring and mortising, driven by hand pressure or with a mallet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. firman firmer gouge Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language