Meaning & Definition of word "Treachery"

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    Treachery

    /ˈtrɛtʃ.ər.i/

    noun:

    • 1. The betrayal of trust; an act of deliberate betrayal or deception.
      • Example: His treachery was revealed when he leaked sensitive information to the enemy.
    • 2. Deceitful or untrustworthy behavior.
      • Example: The treachery of his closest allies left him isolated and vulnerable.
    • 3. A violation of allegiance or faithfulness.
      • Example: The history books are filled with stories of treachery during times of war.
    • 4. A specific act of treachery or betrayal.
      • Example: The treachery he committed against his family was unforgivable.

    Etymology

    Middle English trecherie, from Old French trecherie, from trecher 'to betray'.

    Common Phrases and Expressions

    acts of treachery:

    deeds that involve betrayal or disloyalty.

    a treacherous heart:

    a person who is deceitful and untrustworthy.

    treachery in politics:

    betrayal or dishonest behavior within political contexts.

    Related Words

    traitor:

    A person who betrays a friend, country, principle, etc.

    perfidy:

    Deceitfulness; untrustworthiness.

    duplicitous:

    Deceitful, especially by pretending one set of feelings and acting under the influence of another.

    Slang Meanings of treachery

    Meaning: Backstabbing

    Example Sentence: He's known for backstabbing his colleagues to get ahead.

    Meaning: Two-faced

    Example Sentence: I can't believe she's being two-faced after everything we've been through.