The difference between public opinion and public opinion is that

Public opinion is the sum total of the beliefs, opinions and attitudes that citizens publicly express about a certain behavior at a certain time and place. It is a social evaluation and a reflection of social psychology (1). Simply defined, public opinion is a collection of personal opinions, attitudes and beliefs expressed by a considerable number of people in society on a specific topic. (2) The self-language of individuals or groups expresses their views on an event, which affects people's thoughts and actions.

Public opinion is the abbreviation of "public opinion situation", which refers to the social attitude of the people as the main body to social managers, enterprises, individuals and other organizations and their political, social and moral orientations around the occurrence, development and changes of intermediary social events in a certain social space. It is the sum of many people's beliefs, attitudes, opinions and emotions about various phenomena and problems in society.