/ Dictionary / Index C clyde: Meaning and Definition of Find definitions for: clyde Pronunciation: (klīd), [key] — n. Slang. (sometimes cap.) a stupid, inept, or boorish person. the brain or mind. Clyde Pronunciation: (klīd), [key] — n. a river in S Scotland, flowing NW into the Firth of Clyde. 106 mi. (170 km) long. an inlet of the Atlantic, in SW Scotland. 64 mi. (103 km) long. a male given name: a Scottish family name, after the Clyde River. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: clyde (Thesaurus) Clwyd Clydebank Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language