society > travel > travel by water > vessel, ship, or boat > vessels with other specific uses > [noun] > lifeboat or raft
1814 32 Pref. p. xii The construction of a Safety Boat or Raft, to preserve the lives of persons who fall overboard from a ship.
1976 20 Aug. 369/1 A race was abandoned..because one safety boat was unserviceable.
2006 7 Sept. 23/5 Free divers always have a buddy and a safety boat is normally in attendance.