Definitions for "main deck"
Keywords:  freeboard, deck, uppermost, fore, aft
The uppermost sheltered deck that runs the entire length of a large vessel.
The principal deck, or deck below the spar deck.
Highest watertight (complete) deck aboard ship. On aircraft carriers, the hangar deck is the main deck. Mess: 1. Place where meals are eaten, such as Mess Decks, Captain's Mess, etc. 2. A group who takes meals together, such as officer's mess or chief's mess.