/ Dictionary / Index B Berwick-upon-Tweed: Meaning and Definition of Find definitions for: Ber•wick-up•on-Tweed Pronunciation: (ber'ik-u-pon"twēd'), [key] — n. a town in N Northumberland, in N England, on the North Sea at the mouth of the Tweed. 25,700. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Berwick Berwyn Related Content Daily Word Quiz: dentifrice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language