soap bubble

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Alternative forms



A soap bubble.

soap bubble (plural soap bubbles)

  1. A very thin film of soapy water that forms a sphere with an iridescent surface.
  2. (figurative) Anything attractive but insubstantial.
    • 1879, John Campbell Shairp, Robert Burns, London: Macmillan:
      These words so pierce this soap-bubble of the metaphysicians, that we can hardly read them without fancying that the poet meant them to be ironical.