materials
n. C / Un. the physical things you need to build, make, or do something. This can include items like wood and metal for building, or books and notes for studying.
n. physical substances used to construct or create objects, or the information and resources required for a specific activity. Often used in the plural to denote a collection of items for a task.
We need to buy the building materials today.
The teacher uploaded all the reading materials to the website so students could prepare for the seminar.
Advancements in aerospace engineering often depend on the development of composite materials that offer high strength while remaining lightweight enough for orbital flight.
Commonly used in the plural when referring to a set of resources or substances for a project.