Ola, Mario! Yes, cement & glue are one in the same. If the bottle or tube says something like "Cement For Plastic Models" or "Styrene cement" it is what we commonly refer to as "Glue". Some other types of Glue you'll see mentioned on this site are CA (Cyanoacrylate, Superglue, Crazy glue) And PVA (Elmer's, White Glue, Craft Glue). You may also see Epoxie mentioned, a very strong and versatile 2-part cement.
Don't worry about asking what you may think is a foolish question here, Mario. We all started with little or no Knowledge. It would be foolish to assume you know the answer, and wind up ruining your model!
Hope I helped!