McCarthyism - definition and synonyms

 

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/məˈkɑːrθiˌɪz(ə)m/
  1. a movement in the US against Communists in the 1950s, led by Senator Joseph McCarthy. People who were thought to support Communism were publicly accused and often lost their jobs or even went to prison. People were encouraged to give information about anyone who they thought was a Communist.