The word "everything" means all or everything that is included in a particular group, category, or situation. It refers to every single thing or aspect of something, without leaving anything out.
Usage examples
I have packed everything we need for our vacation - clothes, toiletries, and electronics.
She completed everything on her to-do list - groceries, laundry, and paying bills.
He knows everything there is to know about computers - programming, hardware, and software.
They can find everything they need for their home renovation project at the local hardware store - tools, paint, and building materials.
Here are several make it yourself product tutorials from everything from making baby soap to making homemade cleaning products that are safe to use on toys. (make-baby-stuff.com)