Crusade | Mean of crusade in English Dictionary

/kruˈseɪd/

• Noun
• any one of the wars that European Christian countries fought against Muslims in Palestine in the 11th, 12th, and 13th centuries
• a major effort to change something
1. She has devoted herself to the crusade for equal rights for all people.
2. a crusade [=campaign] against crime/pollution
3. a politician conducting/waging a crusade against organized labor
• Verb
• to take part in a major effort to change something
1. She has crusaded for equal rights for all people.
2. They are crusading [=campaigning] against crime/pollution.