/ Dictionary / Index S Severn: Meaning and Definition of Find definitions for: Sev•ern Pronunciation: (sev'urn), [key] — n. a river in Great Britain, flowing from central Wales through W England into the Bristol Channel. 210 mi. (338 km) long. a city in central Maryland. 20,147. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: severn (Thesaurus) severity Severna Park Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language