basic material
nounUK /ˈbeɪsɪk məˈtɪəriəl/
US /ˈbeɪsɪk məˈtɪriəl/
A basic material is something simple you use to make or build things.
Wood is a basic material we use to build chairs and tables.
OTHER MEANINGS
2. The simplest or most important facts or ideas about a subject.
The teacher taught us the basic material before the harder lessons.
3. A plain fabric or substance used as a starting point for making something.
The bag is made from a basic material that can be dyed any color.
4. The essential supplies needed for a task or activity.
Paper and pencils are basic materials for drawing class.