/ Dictionary / Index W West Islip: Meaning and Definition of Find definitions for: West' I'slip Pronunciation: [key] a city on S Long Island, in SE New York. 29,533. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. West Irian West Jordan Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language