Oxford Dictionary English firepower nounnoun BrE BrE//ˈfaɪəpaʊə(r)// ; NAmE NAmE//ˈfaɪərpaʊər// [uncountable] Add to my wordlistjump to other resultsthe number and size of guns that an army, a ship, etc. has available (figurative) The company has enormous financial firepower.See firepower in the Oxford Advanced American DictionaryCheck pronunciation: firepower oxfordlearnersdictionaries.com