Meaning & use

moulder

verb, noun·AdvancedBritish

Last updated

UK/ˈməʊldə/
US/ˈmoʊldər/

Meanings

  1. verbintransitiveBritish

    to decay slowly, especially by becoming soft, covered with mold, or breaking down over time.

    Grammar: No object; often used with 'away' or 'in'.

    Patterns

    • moulder away
    • moulder in something

    The old books were left to moulder in the damp basement.

    Without repairs, the wooden fence will moulder away within a few years.

    Fallen leaves moulder on the forest floor, returning nutrients to the soil.

  2. nouncountableBritishtechnical

    a person who shapes or makes things by pouring hot liquid metal or plastic into a mold.

    Grammar: Countable noun; plural 'moulders'. Often used with 'a' or 'the'.

    Patterns

    • a moulder in a factory
    • work as a moulder

    He worked as a moulder in a foundry, shaping metal parts.

    The moulder carefully poured the molten metal into the cast.

    Experienced moulders are in demand in the automotive industry.

Word forms

third person singularmoulders
past tensemouldered
past participlemouldered
-ing formmouldering
pluralmoulders

Common combinations

moulder away
The abandoned house slowly mouldered away.
moulder in the ground
The roots began to moulder in the wet ground.
moulder in a foundry
He learned to moulder in a foundry before starting his own workshop.

Synonyms and how they differ

decay
A more general word for breaking down; 'moulder' specifically suggests mold or dampness.
rot
Similar but often stronger and used for organic matter; 'moulder' can also apply to things left unused.

Opposites

Word family

mold noun
a soft, furry growth on old food or damp surfaces
moldy adjective
covered with mold

Commonly confused: moulder or molder? moulder or smoulder?

moulder vs molder

The American spelling of the same word; use 'molder' in US English.

moulder vs smoulder

Means to burn slowly without a flame; different from decaying.

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