Definition of "gut"
The alimentary canal, especially the intestine.
The abdomen of a person, especially one that is enlarged.
The intestines of an animal used to make strings of a tennis racket or violin, etc.
A person's emotional, visceral self.
The essential, core parts.
Ability and will to face up to adversity or unpleasantness.
A gut course.
To remove or destroy the most important parts of.
Made of gut, e.g., a violin with gut strings.
Instinctive, e.g., a gut reaction.