Stateroom: An officer's or passenger's cabin aboard a merchant ship, or the cabin of an officer other than the captain aboard a naval ship, The term may be derived from the fact that in the 16th and 17th centuries, ships often had a cabin reserved for royal or noble passengers.
Steerage: Originally the junior officers' quarters in a naval vessel, referring to the fact that the ship's tiller often projected into the compartment, located far aft. In the 19th century, the term came to mean the cheapest passenger quarters aboard a liner, again, often near the ship's stern where the noise of the ship's screws and engines was unrelenting,
Stern: The rear of any vessel. The word came from the Norse Stjorn (pronounced "Styorn"), meaning "steering"
Steward: A general term for any member of a ship's crew involved with Commissary duties or personal services to passengers and/or crew. The term comes from an old Anglo-Saxon term: Styweard or Sty-warden, the keeper-of-the-pigs. Whether the pigs referred to here are the live animals once kept aboard as provisions on long voyages, or a commentary on the habits and personalities of the passengers is a matter of conjecture,
Tackle: Traditionally pronounced "tay-kle," it refers to gear on deck in general or, specifically, to blocks and their associated lines-as in "block-and-tackle." The word comes from the Middle Dutch taekel, meaning tackle, and from which the pronunciation was derived.
Thwart: A seat orcrossbeam in a small boat, from the Middle English thwarte, meaning "across," "Thwartships" means across the ship.
Topside: The part of the ship above water. Generally Used as a way Of saying "on deck" or "up," as in "lay up topside to see the captain,"
Weather Deck: Any deck on a ship open and exposed to the… well, weather.
Wings: Extensions to either side of the ship. Specifically, the port and starboard wings of the bridge are open areas to either side of the bridge, Used by lookouts and for Signaling.