Is My Client’s Website Still Considered Static?

I have a client project where I'm supposed to create a simple website for a local foundation. Initially, I thought it would just be a static site with some informative pages, like about the foundation, donations, and contact info. However, they mentioned wanting the ability to add, edit, and remove content, including pages and images. Now I'm not sure if this can still be considered a static website. Will I need to set up authentication, a backend, or a database to manage this? Or is there a way to keep it static while meeting their needs? They're looking for something fast and straightforward, but the budget is quite tight. Any advice would really help, thanks!