/ Dictionary / Index C Caerleon: Meaning and Definition of Find definitions for: Caer•le•on Pronunciation: (kär-lē'un), [key] — n. a town in Gwent, in SE Wales: site of ancient Roman fortress, a supposed seat of King Arthur's court. 6235. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Caeremoniale Episcoporum* Caernarvon Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language