The phrase "nine days wonder" refers to something that sparks public interest or fascination for a brief period of time and is then quickly forgotten. There are many synonyms for this phrase, including fad, trend, craze, sensation, novelty, flash in the pan, passing fancy, and momentary pleasure. Each of these words highlights the fleeting nature of the phenomenon being described and reinforces the idea that it is not likely to have a sustained impact on society or culture. Whether we are talking about a viral meme, a new product, or a celebrity scandal, identifying it as a "nine days wonder" can help us to contextualize its importance and understand why it may not be a lasting phenomenon.