As a Noun: 1. A machine, system (or even idea) that has been thought of or made for the first time by someone. English = invention, discovery. 2. A new thing or a new way of doing something. English = innovation. 3. An excuse or an explanation for something which is made up and which may not be true at all but which is convenient for you or someone else. English = concoction. As a Verb or Adjective: 1. To think of or make something for the first time. English = invent, discover. Informal English = come up with something. 2. To introduce changes and new ideas. English = innovate. 3. To make up an excuse or an explanation for something which may not be true at all but which is convenient for you or someone else. English = concoct.