See also: popup and pop-up



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pop up (third-person singular simple present pops up, present participle popping up, simple past and past participle popped up)

  1. To come up with a "pop" sound.
    The toast is in the toaster - when it pops up it will be ready.
  2. (idiomatic) To appear without warning.
    • 2013 June 21, Chico Harlan, “Japan pockets the subsidy …”, in The Guardian Weekly, volume 189, number 2, page 30:
      Across Japan, technology companies and private investors are racing to install devices that until recently they had little interest in: solar panels. Massive solar parks are popping up as part of a rapid build-up that one developer likened to an "explosion."
    I can't remember where I left my keys, but they normally pop up somewhere.