Instant

Instant means something happens very quickly, like when you snap your fingers and you hear the sound right away. For example, when you pour hot water on an instant noodle packet and it gets ready to eat in just a few minutes, that's also instant! Some things take time to happen, like baking a cake in the oven, but instant things happen immediately. So, if something is instant, it means you don't have to wait long to get it done.