/ Dictionary / Index U Ulsan: Meaning and Definition of Find definitions for: Ul•san Pronunciation: (l'sän'), [key] — n. a city in SE South Korea. 157,088. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ulpian Ulster Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language