1. (

• bomber ,
• grinder ,
• hero ,
• hero_sandwich ,
• hoagie ,
• hoagy ,
• Cuban_sandwich ,
• Italian_sandwich ,
• poor_boy ,
• sub ,
• submarine ,
• submarine_sandwich ,
• torpedo ,
• wedge ,
• zep

) a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States ;

2. (

• molar ,
• grinder

) grinding tooth with a broad crown; located behind the premolars ;

3. (

• mill ,
• grinder ,
• milling_machinery

) machinery that processes materials by grinding or crushing ;

4. (

• grinder

) a machine tool that polishes metal ;