Oxford Dictionary English power base noun noun BrE BrE//ˈpaʊə beɪs// ; NAmE NAmE//ˈpaʊər beɪs// Add to my wordlistjump to other resultsthe area or the people that provide the main support for a politician or a political party His power base is in the south of the country.See power base in the Oxford Advanced American DictionaryCheck pronunciation: power base oxfordlearnersdictionaries.com