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Word of the Day Tuesday, June 9, 2026

rarefy

/ˈreɪfʌɪ/ verb · British & US
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What does rarefy mean?

verb

to make or become less frequent or common; to make the air less dense by removing some of the particles that make up the air.

Example

"The rarefaction of the atmosphere made it difficult to breathe at high altitudes."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for rarefy

Antonyms of rarefy

Rhymes with rarefy

Etymologically related