Diligence

Diligence means to be hardworking, and to try your best to do something. It means that if you have a job to do, or something you want to learn, you will put in extra effort to do it or understand it as best you can. It might mean that you work harder, longer, or even smarter than other people. It's like a muscle – if you practice and work at being diligent all the time, then it will become easier and you'll get better at it.