Synonyms for Docker:

n.

buccaneer, bosun, cap'n, captain, crew, boatswain, company, boatman, crewman. docker (noun)
dock worker, dock-walloper, lumper, longshoreman, stevedore, dockhand, loader.

Other synonyms:

bosun, crewman, buccaneer, boatman, cap'n. crew. captain. company. Other relevant words:
company, crewman, boatman, captain, bosun, buccaneer, crew, boatswain.