1. a system of buoys placed in water to mark channels, hazards, or anchorages for navigation
Usage: nautical; chiefly British
2. the buoys themselves collectively, or the maintenance and management of buoys
Usage: nautical

Examples

• The harbor's buoyage helps ships navigate safely through shallow waters.
• Proper buoyage is essential for maritime safety in busy shipping lanes.
• The coast guard inspected the buoyage system to ensure all markers were in place.
• Modern buoyage includes electronic positioning and lighting systems.
• Mariners rely on buoyage to identify underwater obstacles and safe passages.