1. Plural of leftism; political or social ideologies, movements, or doctrines associated with the left side of the political spectrum, typically emphasizing equality, social justice, and collective or state action.
Usage: Usually used in academic or political discourse; Can refer to various left-wing movements or philosophies collectively

Examples

• The professor examined different leftisms throughout the 20th century.
• Various leftisms competed for influence in the labor movement.
• Critics argue that modern leftisms have strayed from their original principles.
• The book compares European and American leftisms.
• Leftisms in the region ranged from democratic socialism to communism.