fizz Syllabification: (fizz)Pronunciation: /fiz/Translate fizz | into German | into Italian | into Spanish Definition of fizz verb [no object] (of a liquid) produce bubbles of gas and make a hissing sound:the mixture fizzed like mad make a buzzing or crackling sound:lightning starts to crackle and fizz [with adverbial] move with or display excitement, exuberance, or liveliness:anticipation began to fizz through his veins noun effervescence:the champagne had lost its fizz informal an effervescent drink, especially sparkling wine:a bottle of grapefruit fizz exuberance; liveliness:she saw I had lost some of my fizzOrigin: mid 17th century: imitativefizz in other Oxford dictionaries Definition of fizz in the British & World English dictionary