Opinion is a person's ideas and thoughts towards something. It is an assessment, judgement or evaluation of something. It is usually based on a personal assessment.
Opinions can either be made up by a person or taken over from another person. Sometimes some people try to force their opinions on others. In general, all people are free to form opinions as they see fit. However, in certain political regimes , especially those with police states, it is not advisable to express certain opinions openly.
Opinions have exerted a major influence on human affairs ever since the dawn of recorded history, and probably before that as well. They are known to have caused several wars, for instance. Also, the impact of opinions in the area of marital relations is impossible to understate.
See also