Meaning & Definition of word "Rust"

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    Rust

    /rʌst/

    noun:

    • 1. A reddish-brown oxide coating that forms on iron or steel when exposed to moisture and air.
      • Example: The old gate was covered in rust after years of standing in the rain.
    • 2. A similar coating on other metals or the process of corrosion.
      • Example: The bike had patches of rust despite efforts to keep it clean.
    • 3. A plant disease caused by fungal infection, typically affecting cereal crops.
      • Example: The farmer was worried about rust affecting his wheat harvest this season.

    verb:

    • 1. To undergo the process of forming rust.
      • Example: If you leave the tools outside, they will rust quickly.
    • 2. To impair in quality or ability due to neglect.
      • Example: After years of inactivity, his skills began to rust.

    Etymology

    Middle English 'rust', from Old French 'rustre', from Latin 'rustica'.

    Common Phrases and Expressions

    rusty skills:

    Refers to skills that have deteriorated due to lack of use.

    rust belt:

    An area in the northeastern or midwestern US that was once industrialized but has experienced economic decline.

    rusting away:

    Slowly deteriorating or becoming less effective.

    Related Words

    corrode:

    To cause to deteriorate due to chemical action.

    oxidation:

    A chemical reaction that involves the loss of electrons.

    Slang Meanings of rust

    Meaning: To lose touch or become ineffective.

    Example Sentence: I've been away from the game so long, I'm totally rust.

    Meaning: Something that is old-fashioned or outdated.

    Example Sentence: That car is so rust; no one drives those models anymore.