| airship flagship lightship |
airship: A type of aircraft that is lighter than air, usually filled with gas (like helium), and able to be steered and powered, for example a blimp or dirigible.
flagship: The main or most important ship in a fleet; more generally, the best or most important product, service or institution in a group.
lightship: A ship or boat anchored in one place and fitted with a powerful light, used as a floating lighthouse to guide other vessels.