The Upper Deck of a boat or ship is either the highest of two decks of a boat or the part of the deck that's the highest part covering the hull. The deck of the boat is the part covering the hull or body.
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A forecastle is the raised part of the upper deck of the front of a ship.
Lower and upper deck
An aftcastle is the raised part of the upper deck at the stern of a ship.
On the upper deck of a cargo ship there will usually be the navigation equipment and access to essential safety equipment such as lifeboats. These are actually slung from the side but accessible from the upper deck.
The answer is deck house.
Quarterdeck is part of the ship's upper deck. It begins with the letter Q.
An aftercastle is another name for an aftcastle, the raised part of the upper deck at the stern of a ship.
A ship typically has several decks, each serving different functions. Common names include the main deck, upper deck, lower deck, and quarterdeck. Other decks may be specifically designated for crew quarters, cargo, or passenger areas, such as the promenade deck or sun deck. The exact names and arrangements can vary depending on the type and design of the ship.
The open deck of a ship is called the weather deck.
A raised deck at the back of the ship. Is a poop deck
The gunwales ("gunnels") are the upper side walls of a ship or boat, or the top rail on a canoe, or a raised walking deck (side deck) on some types of boats. They are named for the strengthened part of a ship where cannons were mounted.