1. An explosive mine designed to destroy ships that bump into it
   - marine mine

Type of: mine

• marine creature
• marine engineer
• marine glue
• marine iguana
• Olympics
• Olympus
• omadawn
• omadhaun
• omadhawn
• Omaha
• Oman
• Omani
• Omani monetary unit
• Omani rial
• Omar Bradley
• Omar Khayyam
• Omar Nelson Bradley
• omasum
• Omayyad
• OMB
• ombre
• ombu
• ombudsman
• Omdurman
• omega