/ Dictionary / Index C Caernarvonshire: Meaning and Definition of Find definitions for: Caer•nar•von•shire Pronunciation: (kär-när'vun-shēr", -shur), [key] — n. a historic county in Gwynedd, in NW Wales. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Caernarvon Caerphilly Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language