/ Dictionary / Index E Excalibur: Meaning and Definition of Find definitions for: Ex•cal•i•bur Pronunciation: (ek-skal'u-bur), [key] — n. Arthurian Romance. the magic sword of King Arthur. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: excalibur (Thesaurus) Exc. excardination Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language