crusade
📖 Definitions
noun
A zealous effort for an idea or cause.
verb intr.
To engage in a zealous effort.
💬 Usage Examples
“On his election to the Senate, [Charles] Sumner led a virtually one-man crusade in Congress for the repeal of this act. The law had led to the exodus of thousands of African Americans to Canada.” Manisha Sinha; The Caning of Charles Sumner; Journal of the Early Republic (Philadelphia, Pennsylvania); Summer 2003.