The phrase "giant swath" refers to a large area or portion of something, often used to describe the extent or size of something significant or extensive. Full definition
It sifts through giant swaths of data to keep out hackers and detect security vulnerabilities. (fortune.com)
Instead of dying giant swaths to resemble vivid, My Little Pony tails or even going with an all - over dusty hue, this latest take does for rainbow hair what Catbird did for jewelry — making it minimal, clean, and barely there. (businessinsider.com)
Because the storm damaged giant swathes of the country's fisheries and rice paddies, the destruction could put the nation at further risk for future food security, the Food and Agriculture Organization of the United Nations warned. (scientificamerican.com)