IPA: /ʌnˈdɒk/
KK: /ʌnˈdɑk/
To move a ship or spacecraft away from a dock or to separate it from a connection.
The crew will undock the spacecraft from the station tomorrow.
Past: undocked
Past Participle: undocked
Undock → It is formed from "un-" (meaning not or opposite) and "dock" (from Old English "docc", meaning a place where ships are secured). The word "undock" means to remove a ship from its secured place or to release it from the dock.
Think of 'un-' meaning not or opposite, and 'dock' as the place where ships are secured. So, undock means to release a ship from its secured place.