/ Dictionary / Index M midnoon: Meaning and Definition of Find definitions for: mid•noon Pronunciation: (mid'nn'), [key] — n. midday. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. midnight sun mid-ocean ridge Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language