Main entry: nerve, brass, cheek, boldness, face
Definition: impudent aggressiveness
Usage: I couldn't believe her boldness; he had the effrontery to question my honesty
Main entry: heart, spunk, nerve, mettle
Definition: the courage to carry on
Usage: he kept fighting on pure spunk; you haven't got the heart for baseball
Definition: any bundle of nerve fibers running to various organs and tissues of the body
Definition: get ready for something difficult or unpleasant