A part-time job is when you have a job that doesn't take up all of your time. It's like when you only have to go to school for a few hours instead of the whole day. When you have a part-time job, you work for a little bit each day or each week instead of working all day every day like your parents might.
Some jobs you can have part-time are like when you help at a store or at a restaurant for a few hours each day. You might help make food, clean up or talk to customers. Other part-time jobs are like when you babysit or mow lawns for a few hours a day or each week.
Having a part-time job can help you learn new things like how to manage your time, how to work with other people, and how to make your own money.