Definition of Propaganda:

A way of presenting a belief that seeks to generate acceptance without regard to facts or the right of others to be heard. Propaganda often presents the same argument repeatedly, in the simplest terms and ignores all rebuttal or counter-argument. It is essentially self- interested and often associated with authoritarian regimes. ...

Psychological images and rhetoric developed to specifically persuade the masses to a particular point of view. Propaganda is usually seen as a form of political advertisement.

(joint) Any form of communication in support of national objectives designed to influence the opinions, emotions, attitudes, or behavior of any group in order to benefit the sponsor, either directly or indirectly

an extreme form of written or spoken persuasion intended to influence the reader or listener strongly, though sometimes subtly, and usually by one-sided rather than objective arguments. 2. speaking or writing that attempts to persuade listeners or readers to accept a particular point of view, either good or bad depending on the speaker's or writer's intent, as advertising propaganda to sell soap.