1. A thing that someone has created, especially a device or process; an innovation: People all over the world can be thankful for Thomas Edison's many inventions.
2. The creation of something new: It took a lot of invention for Gary to develop a plan "B" for their trip, since plan "A" wasn't possible after all.
3. A lie, or the telling of lies (used euphemistically): Iris's tale about what happened to her homework was a total invention, and her teacher laughed a lot about that!
4. The talent to create new things: Milly had the aptitude to design helpful devices or little inventions to help her mother and father out in the kitchen.