1. the internal organs of a person or animal, especially the stomach and intestines
2. courage and determination
Usage: informal
3. the most important or essential parts of something
Usage: informal

Examples

• The fish was cleaned and its guts were removed.
• It takes guts to stand up to a bully.
• She had the guts to quit her job and start her own business.
• The guts of the machine were completely rusted.
• He spilled his guts about what really happened that night.
• The surgery involved repairing damaged guts.
• You need real guts to go skydiving for the first time.