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is massing

  • present progressive of mass (3rd person singular).

Example Sentences

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U.S. intelligence, relying in part on satellite imagery, has found that Russia is massing forces around Ukraine in support of a potential multi-front incursion.

From Washington Post Jan. 29, 2022

Chinese internet photos posted online this week revealed that the People’s Liberation Army is massing missile forces in preparation for the upcoming Oct.

From Washington Times Aug. 14, 2019

Something is massing in the air, like thunder.

From The New Yorker Jul. 26, 2019

Napoleon is massing an army at Boulogne, ready to invade England.

From BBC Nov. 21, 2014

"The Kingslayer is massing a host at easterly Rock," Ser Rodrik Cassel answered from the room behindher.

From "A Game of Thrones" by George R.R. Martin