/ Dictionary / Index S Shannon: Meaning and Definition of Find definitions for: Shan•non Pronunciation: (shan'un), [key] — n. born 1916, U.S. applied mathematician: early developer of information theory. a river flowing SW from N Ireland to the Atlantic: the principal river of Ireland. 240 mi. (386 km) long. international airport in W Ireland, near Limerick. a female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shannon (Thesaurus) Shanna shanny Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language