/ Dictionary / Index C centerboard: Meaning and Definition of Find definitions for: cen•ter•board Pronunciation: (sen'tur-bôrd", -bōrd"), [key] — n. Naut. a pivoted fin keel that can be swung upward and aft within a watertight trunk when not in use. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: centerboard (Thesaurus) center bit centered Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language