Etymology

Proper noun

1. A generic name for the Negro.
2. Southern United States racist and especially segregationist policies in the late 1800s and early to mid 1900s, taken collectively.

Noun

1. A World War II code name for patrols along the British coastline to intercept enemy aircraft, originally intended to warn of invasion in 1940.
   • The Battle of Britain Monument in London

     ... flying cannon equipped Spitfires V’s mainly on ‘Jim Crow’ operations (operational Patrols along the home coastline intercepting any hostile aircraft and looking out for any invasion forces).

Adjective

1. That discriminates against African Americans.
2. Segregated between African Americans and Caucasians.

   A Jim Crow audience