Addis Ababa ad·di·sa·baba US/ˈɑdisʌˈbɑbɑ/ uncommon noun 1. the capital of Ethiopia and the country''s largest city; located in central Ethiopia SynonymsAddis AbabaNew Flowercapital of Ethiopia Related words Broader terms national capital Parts Ethiopia WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.