/ Dictionary / Index M Malibu board: Meaning and Definition of Find definitions for: Mal'i•bu board" Pronunciation: (mal'u-b"), [key] a lightweight, fiberglass-covered surfboard, usually about 10 ft. (3 m) long with a rounded nose and tail and a convex bottom for increased maneuverability. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Malibran malic Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language