Real Dictionary

politics
Your politics are your beliefs about how a country ought to be governed.
plural noun: Politics are the actions or activities concerned with achieving and using power in a country or society. The verb that follows politics may be either singular or plural.
plural noun: Politics can be used to talk about the ways that power is shared in an organization and the ways it is affected by personal relationships between people who work together. The verb that follows politics may be either singular or plural.
uncountable noun: Politics is the study of the ways in which countries are governed.

politics in American English
the science and art of political government; political science
the science or art of political government

politics in British English
noun: the practice or study of the art and science of forming, directing, and administrating states and other political units; the art and science of government; political science