The Terms „Intellectual Property“ (IP) or „Intellectual Property Right“ (IPR) are used to describe rather different legal constructs. Copyright, Patent Law, Trademark Law, etc, etc..
What they have in common is that they cover rights to exclude others from the use of immaterial goods like knowledge and information. Some authors, among them them most prominently Richard M. Stallmann, argue that the term should not be used at all. On the other hand, there are a lot of points that can be brought up against the concept of IP that applies to most or all of the different legal constructs that are commonly lumped under the term „intellectual property“. So it makes sense to use a term that describes all of the laws that exist for the purpose of excluding people from the access to knowledge and information.