/ Dictionary / Index N New Plymouth: Meaning and Definition of Find definitions for: New" Plym'outh Pronunciation: [key] a seaport on W North Island, in New Zealand. 43,914. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. New Philadelphia New Politics 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