leadsman

/ˈlɛdzmən/
noun
  1. A person who takes depth soundings with a lead line on a ship to measure water depth.
    • The leadsman's job was dangerous but essential for safe navigation.
    • The leadsman called out the depth as the ship approached the shallow reef.
    • Before modern sonar, every vessel carried a leadsman to avoid running aground.
Synonyms
What does "leadsman" mean? | whatsthatwordmean | whatsthatwordmean