epsilon

Fetched 2026-10-26 (cache).

Synonyms: upsilon, ypsilon

Antonyms: upsilon, ypsilon

Related words from Datamuse; suggestions, not definitions.

Noun

1. The fifth letter of the [[Greek alphabet]], [[ε]] or [[Ε]], preceded by [[delta]] ('''[[Δ]]''', '''[[δ]]''') and followed by [[zeta]] ('''[[Ζ]]''', '''[[ζ]]''').
2. {{lb|en|phonetics}} In [[International Phonetic Alphabet|IPA]], the phonetic symbol ɛ that represents the [[w:open-mid front unrounded vowel|open-mid front unrounded vowel]].
3. {{lb|en|mathematics}} An [[arbitrarily]] small [[quantity]].
4. {{lb|en|computing|colloquial}} Something [[negligible]] or [[insignificant]].
5. {{lb|en|finance}} The percentage change in an [[option]] value with respect to the [[underlying]] [[dividend yield]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.