Also, PC or p.c. Showing an effort to make broad social and political changes to redress injustices caused by prejudice. It often involves changing or avoiding language that might offend anyone, especially with respect to gender, race, or ethnic background. For example, Editors of major papers have sent out numerous directives concerning politically correct language. This expression was born in the late 1900s, and excesses in trying to conform to its philosophy gave rise to humorous parodies.