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is walling

  • present progressive
    of wall (3rd person singular).
    wall
    noun
    any of various permanent upright constructions having a length much greater than the thickness and presenting a continuous surface except where pierced by doors, windows, etc.: used for shelter, protection, or privacy, or to subdivide interior space, to support floors, roofs, or the like, to retain earth, to fence in an area, etc.

Example Sentences

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Washington has for years warned about China acquiring U.S. technology through unfair means, and protested that Beijing is walling off the world’s biggest internet market from American companies.

From The Wall Street Journal ● Apr. 19, 2018

Such sentiment has been further fueled by the feeling that China is walling itself off from the global Internet and trying to control cross-border data flows on which businesses depend.

From Washington Post ● Jan. 31, 2018

Getting sued is one risk, but so is walling off content that patrons should be able to research and enjoy.

From Slate ● Nov. 30, 2017