I talk to my grandma once a week. On our last conversation, she informed me her church was having a crusade.
Me: What do you mean by crusade?
Grandma: Don’t you know what a crusade is?
Me: I know what it means in a historical sense, but I doubt a bunch of Oklahoma Baptists are about to invade the Levant on Sunday night.
She thought that was highly amusing.
Also, a crusade is a fancy name for a revival.