society > travel > travel by water > vessel, ship, or boat > vessel with reference to qualities or attributes > [noun] > attributes of vessel > greatest width (4)
bearinga1618
Nautical. The point on a ship's hull (below the point of maximum breadth) at which the ship's resistance to being pressed into the water by wind in…
beam1627
Hence, The greatest breadth of a ship.
main-breadth1850
the broadest part of a ship at a particular timber or frame.