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reminder

n.
US //ɹiˈmaɪndɝ// UK //ɹɪmˈaɪndɐ// re·minder
  1. 1 a prompt to remember (n.)
    B1 Intermediate

    a message or note that helps you remember to do something.

    a communication or object intended to prompt the memory regarding a task or appointment.

    Example

    I set a reminder on my phone so I wouldn't forget the doctor's appointment.

    Example

    The automated system sends a reminder to all participants twenty-four hours before the webinar begins to ensure maximum attendance.

  2. 2 a memory of the past (n.)
    B2 Upper Intermediate

    something that makes you think about a person, place, or event from the past.

    an object or circumstance that evokes a memory of a past event, person, or state of affairs.

    Example

    The old photograph was a beautiful reminder of their summer holiday in Italy.

    Example

    The scarred landscape remains a somber reminder of the conflict that divided the region decades ago.

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  1. 3 payment notice (n.)
    C1 Advanced Formal Finance

    a formal letter or message asking you to pay a bill that is late.

    a formal written notice requesting the settlement of an outstanding debt or overdue payment.

    Example

    The company sent a final reminder because the electricity bill was two weeks late.

    Example

    Despite several reminders regarding the outstanding balance, the client failed to settle the invoice, forcing the firm to pursue legal action.

    Usage

    Often used with adjectives like 'first', 'second', or 'final' to indicate the level of urgency.

Origin

From remind + -er.

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