/ Thesaurus / C Synonyms of capital of south korea Find synonyms for: Noun1. Seoul, capital of South Koreausage: the capital of South Korea and the largest city of Asia; located in northwestern South KoreaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language