1. The highest-ranking or most senior man in an organization or group
   "As the topman of the company, he made all the final decisions"
    
2. (construction) a worker who guides and signals the operator of a crane or other lifting equipment
   "The topman used hand signals to direct the crane operator"
    
3. (historical) a sailor stationed in the crow's nest or upper part of a sailing ship's mast
   "The topman spotted land on the horizon"

Derived forms: topmen

Encyclopedia: Topman