abstract:In general relativity, the hole argument is an apparent paradox that much troubled Albert Einstein while developing his famous field equation.
One argument against the comet theory is that a comet would have left a large hole in the Earth's surface.
VOA: special.2009.01.20
An ace in the hole is an argument, plan or thing kept hidden until needed.
VOA: special.2009.11.22
An argument can be made that since the donut hole in pharmaceutical coverage for seniors is not completely filled until 2020, Medicare Advantage is still of considerable importance to our seniors.
The argument is that while BAS science has yielded the discovery of the ozone hole and other important findings on the glaciers and biology of the Antarctic Peninsular, the future lies in collaboration.