What is Propaganda?

The dictionary defition of 'Propaganda' is labeled by many different words such as advertising, agitprop, announcement, ballyhoo, brainwashing*, disinformation, doctrine, evangelism, handout, hogwash*, hype*, implantation, inculcation, indoctrination, newspeak, promotion, promulgation, proselytism, publication, publicity (SOURCE: Dictionary.com)

Propaganda is a distinguishing type of message directly aimed at influencing the opinions or behavior of a group of people. Propaganda is mainly biased and it does not withhold positive connotation.