- present perfect progressive of balloon.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
All the while their populations have been ballooning in cities around the world.
From Scientific American • Jun. 20, 2023
The action-adventure genre, which has worldwide appeal but whose budgets have been ballooning until they are ready to burst, will finally be terminated.
From Time Magazine Archive
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He and Anderson, the president of a uranium and copper mining company, have been ballooning together for years and have had their share of adventures�once clearing Pikes Peak by just 20 ft.
From Time Magazine Archive
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