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Word of the Day Tuesday, June 9, 2026

epsilon

/ɛp.sɪlɒn/ noun · British & US
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What does epsilon mean?

noun

The fifth letter of the Greek alphabet, representing a small consonantal sound. In mathematics, a very small positive or negative quantity.

Example

"The Greek letter epsilon is often used to represent a small change in a mathematical function."

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

Synonyms for epsilon

Antonyms of epsilon

Rhymes with epsilon

Etymologically related