/ Dictionary / Index C Cook Islands: Meaning and Definition of Find definitions for: Cook' Is'lands Pronunciation: [key] a group of islands in the S Pacific belonging to New Zealand. 21,317; 99 sq. mi. (256 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cook Inlet cookoff Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language