IPA: /ˈdɒkˌwɜːrkər/
KK: /ˈdɑkˌwɜrkər/
A person who works at a dock, loading and unloading cargo from ships.
The dockworker carefully moved the crates from the ship to the warehouse.
Dockworker → It is formed from "dock" (from Old English *docc*, meaning a structure for loading and unloading ships) and "worker" (from Old English *weorc*, meaning a person who works). A dockworker is a person who works at the dock, handling cargo and ships.
Think of a 'dock' as a place where ships are loaded and unloaded, and 'worker' means a person who does a job. So, a dockworker is someone who works at the dock.
No commonly confused words.