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phenomenon

/fɪˈnɒmɪnən/
noun★Intermediate
formal

An observable fact or event that can be observed and studied, often used in scientific or philosophical contexts.

The northern lights are a natural phenomenon that occurs near the Arctic Circle.

The sudden rise in stock prices was a phenomenon that puzzled economists.

💡

Often used in scientific, philosophical, or general contexts to describe observable events or facts.

Collocations

natural phenomenonAn event or occurrence in nature, such as a solar eclipse or volcanic eruption.social phenomenonA pattern of behavior or event observed in human society, such as fashion trends or political movements.rare phenomenonAn event or occurrence that happens infrequently or is unusual.

Synonyms

Antonyms

Related Phrases

a phenomenonphrase
A person or thing that is remarkable or extraordinary.

💡Pro Tip

Usage Tip

Use 'phenomenon' when referring to observable events or facts, especially in scientific or philosophical discussions.

⚡Gold Rule

Singular vs. Plural

'Phenomenon' is singular; the plural form is 'phenomena' (e.g., 'natural phenomena').

📖Word Origin

From Greek 'phainomenon,' meaning 'that which appears,' from 'phainesthai' (to appear).

📝Usage Notes

The word is often used in formal or academic contexts to describe observable facts or events, especially in science and philosophy.

Word Breakdown

pheno
From Greek 'phainesthai,' meaning 'to appear,'
root
+
-menon
From Greek '-menon,' a suffix indicating 'that which is,'
suffix
✎ Noted on June 3, 2026EN → EN

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