/ Dictionary / Index L Lewiston: Meaning and Definition of Find definitions for: Lew•is•ton Pronunciation: (l'u-stun), [key] — n. a city in SW Maine. 40,481. a city in W Idaho. 27,986. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lewiston (Thesaurus) Lewisohn Lewisville Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language