phenomenon
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
A fact or event, especially one that is unusual or hard to fully explain.
Synonyms and antonyms
Synonyms
Usage notes
The plural is "phenomena", a form that's often mistakenly used as if it were singular.
Test yourself
Which word fits the gap? "Scientists still don't fully understand the _____ of ball lightning."
Answer: phenomenon
In your own words, what does "phenomenon" mean?
A fact or event, especially one that is unusual or hard to fully explain.
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