/ Dictionary / Index W westmost: Meaning and Definition of Find definitions for: west•most Pronunciation: (west'mōst" or, esp. Brit., -must), [key] — adj. westernmost. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: westmost (Thesaurus) Westmorland Westmount Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language