a set of straps and fittings by which a horse or other draught animal is fastened to a cart, plough, etc. and is controlled by its driver

put a harness on (a horse or other draught animal)

how to groom a horse and harness it

the horse was harnessed to two long shafts

control and make use of (natural resources), especially to produce energy

attempts to harness solar energy

projects that harness the creativity of those living in the ghetto