A mould is a hollow container that you pour liquid into. When the liquid becomes solid, it takes the same shape as the mould.

If a person fits into or is cast in a mould of a particular kind, they have the characteristics, attitudes, behaviour, or lifestyle that are typical of that type of person.

Mould is a soft grey, green, or blue substance that sometimes forms in spots on old food or on damp walls or clothes.

If you say that someone breaks the mould, you mean that they do completely different things from what has been done before or from what is usually done.

If you mould a soft substance such as plastic or clay, you make it into a particular shape or into an object.

To mould someone or something means to change or influence them over a period of time so that they develop in a particular way.

When something moulds to an object or when you mould it there, it fits around the object tightly so that the shape of the object can still be seen.