Definition of nine days' or seven-day or one-day wonder in English:

nine days' (or seven-day or one-day) wonder

Something that attracts great interest for a short while but is then forgotten.
More example sentences
  • Was it just a nine days' wonder that faded as fast as it arrived?
  • Animal Rights groups here are voluntary and struggle to campaign whilst faced with an apathetic response once the initial seven-day wonder period of a highlighted abuse passes.
  • I don't normally keep a diary, so I will retrospectively reconstruct the main events and impressions of a seven-day wonder that had no precedent.
See parent entry: wonder

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Word of the day notional
Pronunciation: ˈnəʊʃ(ə)n(ə)l
existing only in theory or as a suggestion…