/ Dictionary / Index V Vilnius: Meaning and Definition of Find definitions for: Vil•ni•us Pronunciation: (vil'nē-oos"), [key] — n. a city in and the capital of Lithuania, in the SE part: formerly in the Soviet Union and earlier in Poland. 582,000. Polish,Russian, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vilnius (Thesaurus) Vilma vim Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language