The definition of tyranny

From a facebook post by Allen West on April 3, 2013: 

The AP has now banned the term “illegal immigrant.” The left and their complicit media allies are continuously altering language to suit their liberal progressive agenda, like calling government spending "investment” and acts of terrorism “man-caused disasters.” This is beyond Orwellian and truly the perfection of Saul Alinsky's guide for radicals. Liberals are adept at developing language to demean and demonize their opposition. And this, combined with Obama's Executive Order, issued last Thursday, to establish a Presidential Commission of Election Administration potentially altering the future of national elections --well, you have the recipe for tyranny. We all had best learn what that word means before the leftists redefine it.