- the upper deck of a ship in front of the foremast
- the front part of a merchant ship, where the crew's quarters are located
Origin of forecastlefore + castle: from the foremost of the two castlelike structures on the hull of a medieval vessel
- The section of the upper deck of a ship located at the bow forward of the foremast.
- A superstructure at the bow of a merchant ship where the crew is housed. See Usage Note at boatswain.
Origin of forecastleMiddle English forecastel : fore-, fore- + castel, fortification; see castle.
From Anglo-Norman forechasteil