It is quite difficult to define Public Opinion because different scholars define it differently. Some define it as the opinion of all the people some others say it is an opinion of leaders, while still others describe it as a majority opinion. But these views do not represent truth.
1. Aggregate of views which men hold regarding matters that affect the community." However, such as aggregate must have for its basis the welfare of the community and only then can it be recognized and respected as public opinion.
2. In the words of Dr. Beni Prasad, "Opinion may be regarded as truly public opinion when it is motivated by regard for the welfare of the whole of society."
3. According to Carol, "In its common use Public Opinion refers to the composite reaction of the general public."
4. Lowell defines Public Opinion,: "In order that opinion may be public, majority is not enough and unanimity is not required, but the opinion must be such that while the minorities may not share it but they feel bound by conviction and not by fear to accept it."
In simple words we can say that public opinion is neither the opinion of all nor it is the majority opinion. It is an opinion which is generally held by all and its purpose is to highlight the welfare of all. It is a consensus opinion which enjoys the support of a very large majority of people. It is even not opposed by the minorities as it reflects a concern for the welfare of all.