POW Meaning of POW in English I. ˈpō, ˈpau̇ nounEtymology: alteration of pollDate: circa 1500: head , poll II. ˈpau̇ nounEtymology: imitative Date: 1881: a sound of a blow or explosion Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003