[{"Bold_text": "verb (used without object)", "List Items": ["to make a hissing or sputtering sound, especially one that dies out weakly.", "Informal.to fail ignominiously after a good start (often followed byout):The reform movement fizzled out because of poor leadership.Synonyms: founder , collapse , miscarry"]}, {"Bold_text": "noun", "List Items": ["a fizzling, hissing, or sputtering.", "Informal.a failure; fiasco."]}]