[noun] a support consisting of an arrangement of straps for holding something to the body (especially one supporting a person suspended from a parachute)
[noun] stable gear consisting of an arrangement of leather straps fitted to a draft animal so that it can be attached to and pull a cart
[verb] put a harness; "harness the horse" Synonyms:tackle
[verb] exploit the power of; "harness natural forces and resources"
[verb] control and direct with or as if by reins; "rein a horse" Synonyms:rein in, draw rein, rein
[verb] keep in check; "rule one's temper" Synonyms:rule, rein