sparklerPronunciation: /ˈspɑːklə/Translate sparkler | into French | into Italian | into Spanish Definition of sparkler noun 1a handheld firework that emits sparks. 2 informal a gemstone, especially a diamond. 3 informal a sparkling wine. 4a nozzle attached to the spout on a beer pump to give the beer a frothy head. sparkler in other Oxford dictionaries Definition of sparkler in the US English dictionary