mold
Definitions
A hollow container used to give a specific shape to molten or hot liquid material.
A furry growth of minute fungal hyphae occurring typically in moist, warm conditions.
To form an object or material into a particular shape or pattern.
Examples
The damp conditions in the basement caused mold to grow on the walls.
He used a plastic mold to shape the clay into a perfect sphere.
It is important to break the mold and try new approaches to problem-solving.