<Li> Lido deck: Open area, typically at or near the stern of a passenger ship, housing the main outdoor swimming pool and sunbathing area . </Li> <Li> Lower deck: (a) the deck immediately over the hold, orig . only of a ship with two decks . (b) synonym for berth deck . (c) alternative name for a secondary gun deck </Li> <Li> Main deck: The principal deck of a vessel; in some ships the highest deck of the hull, usually but not always the weather deck; in sailing warships often a deck under the upper deck . </Li> <Li> Middle or Waist deck The upper deck amidships, the working area of the deck . </Li>

Whats the difference between a deck and a dock