Towing is coupling two or more objects together so that they may be pulled by a designated power source or sources. The towing source may be a motorized land vehicle, vessel, animal, or human, and the load being anything that can be pulled. These may be joined by a chain, rope, bar, hitch, three-point, fifth wheel, coupling, drawbar, integrated platform, or other means of keeping the objects together while in motion.
Large ballast tractor pulling a heavy load (a transformer) on a hydraulic modular trailer using a drawbar
A British Airways Concorde being towed in New York City
Travel trailers are a familiar type of recreational vehicle
Lowboys carry very heavy loads
A tow truck is a truck used to move disabled, improperly parked, impounded, or otherwise indisposed motor vehicles. This may involve recovering a vehicle damaged in an accident, returning one to a drivable surface in a mishap or inclement weather, or towing or transporting one via flatbed to a repair shop or other location.
A modern Dodge Ram tow truck
A 1920 Chevrolet tow truck
Boom truck with underlift
Wheel-lift tow truck