portwatcher

/ˈpɔrtˌwɑtʃər/
noun
  1. A person who watches or monitors activity at a port or harbor, often for security, observation, or recreational purposes.
    • The portwatcher reported the oil spill to the coast guard immediately.
    • Every morning, the retired sailor would sit on the bench as a portwatcher, enjoying the comings and goings of the boats.
    • The portwatcher spotted an unusual ship approaching the harbor late at night.
  2. A person who observes or tracks the movement of ships and cargo for commercial or logistical purposes.
    • The logistics company hired a portwatcher to track incoming container ships.
    • As a portwatcher, she kept detailed records of every vessel's arrival and departure times.
    • The portwatcher's data helped the company predict delays in the supply chain.
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