/ Dictionary / Index W West Coast: Meaning and Definition of Find definitions for: West' Coast' Pronunciation: [key] the western coast of the U.S., bordering the Pacific Ocean and comprising the coastal areas of California, Oregon, and Washington. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. West Chicago West Coast jazz Related Content Daily Word Quiz: stellar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language