Basics Easier - Inventors are persons who think of, create, or make something that is new. Harder - To invent something means to create a new device, come up with a new process, or to make a new product. Invention is closely related to, but different than discovery. A discovery is the first recognition of something that already existed in nature.
Invention is the creation of something that has never existed before.
Invention is also closely related to innovation. An innovation is a change in the way something is done. An innovation may make an invention accessible to more people, thereby increasing its use. But again, the original invention already existed. The innovation is a change that is made to the invention.