Brainstorming is a technique that is used to generate new ideas or solutions. It is a way of thinking creatively by coming up with as many ideas as possible.
For example, if you are trying to come up with ideas for a new product, you would brainstorm all of the different possibilities. This could include ideas for the design, function, target market, etc. Once you have a good list of ideas, you can then start to narrow them down and choose the best one.