affairs vs politics

affairs and politics both are nouns.

Word	Noun	Adjective	Verb	Adverb
affairs	Yes	No	No	No
politics	Yes	No	No	No

As nouns, politics is a hyponym of affairs; that is, politics is a word with a more specific, narrower meaning than affairs:

affairs: transactions of professional or public interest
politics: the activities and affairs involved in managing a state or a government

Other hyponyms of affairs include international affairs, world affairs.

affairs (noun)	politics (noun)
transactions of professional or public interest	the profession devoted to governing and to political affairs
matters of personal concern	the activities and affairs involved in managing a state or a government
	the study of government of states and other political units
	the opinion you hold with respect to political questions
	social relations involving intrigue to gain authority or power