text: what the meaning of invention?   in·ven·tion: n. 1.the act or process of inventing: used a technique of her own invention. 2.a new device, method, or process developed from study and experimentation: the phonograph, an invention attributed to thomas edison. 3.a mental fabrication, especially a falsehood. 4.skill in inventing; inventiveness: “the invention and sweep of the staging” (john simon). 5.music. a short composition developing a single theme contrapuntally. 6.a discovery; a finding.