/ Dictionary / Index M milden: Meaning and Definition of Find definitions for: mild•en Pronunciation: (mīl'dn), [key] — v.t., v.i. to make or become mild or milder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mild mildew Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language