upsilon

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upsilon

/ˈ(j)uːpsɪˌlɒn/ UK
/ˈ(j)ʊpsɪˌlɒn/ UK
/ˈʌpsɪˌlɒn/ UK
/(j)uːpˈsaɪlən/ UK
/(j)ʊpˈsaɪlən/ UK
/əpˈsaɪlən/ UK
/ˈ(j)upsɪˌlɑn/ US
/ˈ(j)ʊpsɪˌlɑn/ US
/ˈʌpsɪˌlɑn/ US
/ˈ(j)upsɪˌlɒn/ Canada
/(j)ɪu̯psɪˌlɒn/ Canada

Where it comes from

From Ancient Greek ὖ ψιλόν (û psilón, “simple Υ”).

noun upsilons · upsila · ypsilon

The twentieth letter of Classical and Modern Greek; the twenty-second letter of Old and Ancient Greek.
particle An upsilon meson, or bottomonium.

Translations

Every language

noun letter of the Greek alphabet

Español	ípsilon
한국어	입실론 ipsillon
日本語	ユプシロン yupushiron, ウプシロン upushiron
中文	宇普西龍 /宇普西龙 yǔpǔxīlóng, 埃普西隆 āipǔxīlóng
Português	ípsilon, hipsilo, ipsilone, ipsilão
Français	upsilon
Deutsch	Ypsilon
Italiano	ipsilon
Ελληνικά	ύψιλον ýpsilon
Русский	и́псилон ípsilon
العربية	أُبْسِلُون ʔubsilūn, أُبْسِيلُون ʔubsilūn
עברית	אִיפְּסִילוֹן ípsilon

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MLA

"upsilon." Wiktionary, via Micwyn, micwyn.com/word/upsilon. Accessed 6 Nov. 2026.

APA

upsilon. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/upsilon

Chicago

"upsilon." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/upsilon.

BibTeX

@misc{upsilon_2026,
  title = {upsilon},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/upsilon},
  urldate = {2026-11-06}
}