PONTOON n.
cranes, capstans, and other machinery, used in careening ships, raising weights, drawing piles, etc., chiefly in the Mediterranean; a lighter. Pontoon bridge, a bridge formed with pontoons. -- Pontoon train, the carriages of the pontoons, and the materials they carry for making a pontoon bridge.
RAM v.
h violence; to force in; to drive together; to cram; as, to ram an enemy's vessel; to ram piles, cartridges, etc. [They] rammed me in with foul shirts, and smocks, socks, foul stockings, greasy napkins. Shak.
TRESTLE n.
ed by carpenters, masons, and other workmen; also, a kind of framework of strong posts or piles, and crossbeams, for supporting a bridge, the track of a railway, or the like.