Shop high-quality pet harnesses crafted for durability and versatility. Find adjustable, reflective styles suitable for walking, training, or work activities. The meaning of HARNESS is the equipment other than a yoke of a draft animal. How to use harness in a sentence. A harness is a set of straps which fit under a person's arms and fasten around their body in order to keep a piece of equipment in place or to prevent the person moving from a place. To put a harness on (a draft animal). To fasten by the use of a harness. To bring under control and direct the force of: If you can harness your energy, you will accomplish a great deal. A harness is a set of straps that are put on a horse so it can be hitched to a wagon or a carriage. The harness distributes the effort across larger sections of the horse's body. They harnessed the power of the waterfall to create electricity. She harnessed several computers (together) to work as one large computer. A harness is a set of straps which fit under a person's arms and fasten round their body in order to keep a piece of equipment in place or to prevent the person moving from a place. Harness is a self-service CI/CD platform that allows engineers and DevOps to build, test, deploy, and verify software, on-demand.