What do you mean by mass …

Meaning or Definition of mass media: Mass media means the media such as print (press, newspapers, magazines), radio, television and films (movies shown or screened Jin a cinema hall or otherwise) which are used to communicate to a large number of people.

The term ‘mass’ is defined here in a sense of a large number of people of a community or group or a country (or several countries) as against a particular class or category of the people.
This notion of mass implies that mass media is different from other kinds of communication because they address a cross-section of a large population rather than a few individuals or a particular section of the population.
It is also called mass-media because information is disseminated through these channels simultaneously to the masses (all people or common people along with particular class and section).