1. A tower with a light that gives warning of shoals to passing ships
   - beacon, lighthouse, pharos

Derived forms: beacon lights

Type of: tower

• prologize
• prologue
• prologuise
• prologuize
• prolong
• prolongation
• prolonge
• prolonge knot
• prolonged
• prolonged interrogation
• prolusion
• prolusory
• prom
• promenade
• promenade concert
• promenade deck
• promethazine
• Promethean
• Prometheus
• promethium
• prominence
• prominent
• prominently
• promiscuity
• promiscuous