Pantone is the ink color chart for offset lithography (like anything you send to the "printer" that's not a 4 color process print)

4 color process printing (Cyan, Magenta, Yellow, Black) can nail most colors but nowhere near all of them You'll never get a good orange, red, green, silver, etc, by mixing the CMYK no matter what your dot pitch is.

so in quick english,
Pantone = the color of the pie in the magazine