An irrational need or irresistible urge to perform some action, often despite negative consequences.
The use of authority, influence, or other power to force (compel) a person or persons to act.
The lawful use of violence (i.e. by the administration).
The tendency to focus one's attention on one specific idea or viewpoint, to the exclusion of everything else.
A restricted field of vision as the result of looking through some type of object or a medical condition.