San Salvador san·sal·va·dor US/ˈsæˈnsælvʌˌdɔr/ uncommon noun 1. the capital and largest city of El Salvador; has suffered from recurrent earthquakes SynonymsSan SalvadorSalvadoran capital Related words Broader terms national capital Parts El Salvador WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.