/ Dictionary / Index N Northumbria: Meaning and Definition of Find definitions for: North•um•bri•a Pronunciation: (nôr-thum'brē-u), [key] — n. an early English kingdom extending N from the Humber to the Firth of Forth. See map under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: northumbria (Thesaurus) Northumberland Strait Northumbrian Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language