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phenomenon

n.
US //fəˈnɑməˌnɑn// UK //fɪnˈɒmɪnən// phe·nom·e·non
  1. 1 observable event (n.)
    B2 Upper Intermediate Academic Science

    something that exists or happens, especially something that scientists study.

    an observable fact or event, particularly one whose cause or explanation is under investigation.

    Example

    Glaciers melting is a natural phenomenon caused by rising temperatures.

    Example

    The researchers spent a decade documenting the phenomenon of bioluminescence in deep-sea organisms that had never been studied before.

    Usage

    The plural form is 'phenomena'.

    Pitfall
    These phenomenons are very rare.
    These phenomena are very rare.

    The standard plural of phenomenon is phenomena.

  2. 2 remarkable person or thing (n.)
    C1 Advanced Formal

    someone or something that is very impressive or unusual.

    a person or thing that is remarkably talented, successful, or extraordinary.

    Example

    The young pianist was a musical phenomenon who played like a professional.

    Example

    The rapid growth of the tech startup was a business phenomenon that defied all market predictions for that quarter.

    Teacher's tip

    In this sense, the word is often used to describe child prodigies or sudden cultural trends.

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  1. 3 philosophy (n.)
    C2 Proficiency Academic Technical Philosophy

    the way something appears to our senses, rather than how it is in reality.

    an object of perception as opposed to a 'noumenon' or thing-in-itself.

    Example

    He studied the phenomenon of time as we experience it every day.

    Example

    Kant distinguished between the phenomenon, which is the world as we perceive it, and the noumenon, which exists independently of our senses.

    • noumenon
Origin

From Late Latin phaenomenon (“appearance”), from Ancient Greek φαινόμενον (phainómenon, “thing appearing to view”), neuter present middle participle of φαίνω (phaínō, “I show”).

Word family

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