/ Dictionary / Index M magn-: Meaning and Definition of Find definitions for: magn- Pronunciation: [key] var. ofbefore a vowel: magnanimous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. magma Magna Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language