Mold (noun)

1. A hollow container used to give a shape to molten or hot liquid material as it cools and hardens.
2. A fungus that grows on organic matter, especially in damp conditions.
3. A shape or structure produced by the shaping of material, especially by casting.

Origin:

Middle english mould, from old english mōld; influenced by old norse mǫl.

Examples:

1. He used a mold to make the chocolate bunny.
2. The old bread had a thick layer of green mold on it.
3. The artist used a mold to make a replica of the ancient artifact.
4. The walls of the basement were covered in black mold from the leaky roof.
5. The statue was cast in bronze using a mold made of clay.