Then of course there is the terminology of what will be at the campsite. Developed camping may be dry camping with no electric, water, etc. at your site, although there often is a water source somewhere and a sanitary dump station.
Full hookups means water, electric, and sewer (your very own capped hole in the ground at the site versus a dump station shared by all.) Electric comes in various amps or combos (15, 30, 50) so you need to know your requirements and carry adapters.
Just to keep things interesting, you could find full hookups anywhere - even at a state or provincial park - or completely dry camping, so you can never assume. Not unusual to find various options in the same campground, with price varying by what your site contains.
RVing in Canada has different terms like Fully Serviced, 2-way, etc.