See fizzle in Webster's New World Roget's A-Z Thesaurus II
verb
To make a sharp sibilant sound:
fizz, hiss, sibilate, sizzle, swish, whiz, whoosh. See sounds- (Informal)
To lose strength or power.
Also used with out: decline, degenerate, deteriorate, fade, fail, flag2, languish, sink, wane, waste (away), weaken. Idioms: go downhill, hit the skids. See increase, strong
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