mould

mould — noun

1. a soft, furry coating that forms in warm wet places, such as on leftovers that h

1.nounB1
Definition

a soft, furry coating that forms in warm wet places, such as on leftovers that have been sitting too long or on walls that stay damp. Its colours range from shades of green and grey to black, and it belongs to the fungus family.

Example

Pim found green mould on the bread he left in the bag for over a week.

mould on [type of food]

The bathroom wall was covered with black mould because the room never dried out fully.

covered with mould on a surface

Common collocations
  • green mould
  • black mould
  • white mould
  • covered in mould
  • mould grows
  • smell of mould
Synonyms
  • fungus

    broader category; includes mushrooms and yeasts, not just the furry growth on food

  • mildew

    usually a lighter-coloured mould that grows on plants, paper, or fabric

Grammar Patterns

mould grows on [noun phrase]

covered in/with mould

Usage Note

The American English spelling is 'mold'. Mould is usually uncountable when talking about the substance generally ('There is mould on the walls'), but countable when referring to specific types ('Several different moulds grew on the fruit').

Common Mistakes

I need to clean the moldy in the kitchen.
I need to clean the mould in the kitchen.
'mould' is a noun; 'mouldy' is the adjective form.

2. an open container whose inner space has a fixed shape. A soft or liquid substanc

2.nounB1
Definition

an open container whose inner space has a fixed shape. A soft or liquid substance such as melted metal, clay, or cake batter is put into it, and when the substance hardens it takes on that same shape.

Example

Tamás poured the melted chocolate into a heart-shaped mould to make Valentine's candy.

pour [substance] into a [shape] mould

The artist pressed wet clay into a plaster mould to produce identical bowls.

press [material] into a mould

Common collocations
  • metal mould
  • plaster mould
  • cake mould
  • heart-shaped mould
  • pour into a mould
  • remove from the mould
Synonyms
  • cast

    refers both to the mould itself and the object produced from it; more common in industrial or medical contexts

  • die

    a specialised metal block used for shaping, stamping, or cutting in manufacturing

  • form

    broader term; can refer to any tool or frame that gives shape

Grammar Patterns

pour [substance] into a mould

in a mould

use a mould to [verb]

Usage Note

Moulds can be made of metal, plastic, silicone, plaster, or wood depending on the material being shaped and the temperature involved.

Common Mistakes

I used a mould to do a cake.
I used a cake mould to make a cake.
'do a cake' is not natural; use 'make a cake' and clarify that the mould is specifically for cakes.

3. a particular set of qualities, attitudes, or behaviours that mark a specific kin

3.nounB2
Definition

a particular set of qualities, attitudes, or behaviours that mark a specific kind of person, making them easy to recognise as belonging to that group.

Example

The new head coach is from a very different mould than her predecessor — far more relaxed and informal.

from a different mould

Reporters at that newspaper tend to fit a certain mould: well-educated and raised in the capital.

fit a certain mould

Common collocations
  • from the same mould
  • fit a mould
  • break the mould
  • in the traditional mould
  • in a different mould
Synonyms
  • type

    more general; lacks the implication of being shaped by tradition or environment

  • stamp

    suggests a strong, distinctive character that leaves a clear impression

  • character

    focuses on the inner qualities rather than the external type

Grammar Patterns

from/in/out of the same mould

in a [adjective] mould

break the mould

Usage Note

Used most often in fixed phrases with 'from', 'in', 'fit', or 'break'. 'Break the mould' is a common idiom meaning to change an established pattern in a dramatic way.

Common Mistakes

He is a leader of another mould.
He is a leader from a different mould.
the fixed expression is 'from a different mould', not 'of another mould'.
Idioms

to change a long-established pattern or tradition in a striking way, especially by doing something original that others have not tried before.

The young architect broke the mould by designing a skyscraper that produces more energy than it uses.

The school's new teaching method broke the mould — there were no exams and no grades at all.

to be very similar to someone else in character, behaviour, or attitude.

The two sisters were cast in the same mould — both shy but fiercely independent.

Every CEO they hire seems cast in the same mould: ambitious and unwilling to take risks.

To do something new and different that changes the usual way of doing things.

Maya broke the mould by becoming the first female pilot in her town.

Did the new CEO break the mould of traditional management?

Used to say that someone or something is unique and there will never be another like them.

After creating that masterpiece, they truly broke the mould.

My grandmother was one of a kind; they broke the mould when they made her.

mould — verb

Synonym discussion

Sense: verb/1

All four words describe giving something a particular structure, but they differ in how the action is done. 'Mould' emphasises pressing or fitting a soft material into a desired form, often using a container or the hands. 'Shape' is the most general term — you can shape clay, a piece of wood, or even a plan. 'Form' is slightly more formal and focuses on the process of bringing something into existence with a particular structure. 'Sculpt' implies artistic skill and is usually reserved for carving hard materials like stone or wood, or for modelling clay with careful detail. For example, a potter moulds clay by pressing it on a wheel, while an artist sculpts a figure from marble with chisels.