IPA: /ˌæntiˈkɒmjʊnɪzəm/
KK: /æntiˈkɑːmjʊnɪzəm/
The belief or ideology that opposes communism and supports capitalist principles.
During the Cold War, many countries adopted anticommunism as a central part of their foreign policy.
Anticommunism is formed from "anti-" (meaning against) and "communism" (from Latin "communis", meaning common or shared). The term refers to the opposition to the political and economic ideology of communism, which advocates for common ownership of the means of production.
Think of being 'against' ('anti-') the idea of 'common ownership' ('communism') — that's what anticommunism means.