According to Dictionary.com, bias is a " particular tendency, trend, inclination, feeling, or opinion, especially one that is preconceived or unreasoned."
Media bias refers to the perception that journalists, editors and news producers show a pattern of bias by what stories they select to cover, and how they report them. Rather than present a neutral narrative, reporters allegedly present a point a view.
In our current political climate where EVERY issue seems to be politicized, we generally refer to:
Liberal (left, left-wing) | Centrist | Conservative (right, alt-right) |