- haven, oasis - a shelter serving as a place of safety or sanctuary
--1 is a kind of shelter
- seaport, haven, harbor, harbour - a sheltered port where ships can take on or discharge cargo
--2 is a kind of port
--2 is a part of seafront
--2 has parts:
--2 has particulars:dock, dockage, docking facility; landing, landing place; anchorage, anchorage ground coaling station; port of call; Caesarea; Pearl Harbor; Boston Harbor