/ Dictionary / Index M Millbrae: Meaning and Definition of Find definitions for: Mill•brae Pronunciation: (mil'brā), [key] — n. a city in W California, on San Francisco Bay. 20,058. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. millboard Millburn Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language