Hi there! So, online editing is when you change or fix things on something that is on the internet, like a website or a document. It's kind of like cleaning up a mess in your room, but instead of using a broom and dustpan, you use your computer.
Let's say you have a blog post that you wrote and posted online, but then you noticed there were a few mistakes. With online editing, you can go back into the post and fix those mistakes without having to take the entire post down and repost it. You can just go in and change the parts that need fixing.
Online editing can also be used to add things to something that's already been posted. For example, if you posted a picture online and you wanted to add a caption to it, you can use online editing to do that.
Overall, online editing is a tool that allows you to make changes and improvements to things that are already online. It's kind of like a magic wand that lets you fix things with just a few clicks of your keyboard!