Upsilon (US: /ˈʌpsɪˌlɒn, ˈ(j)uːp-, -lən/, UK: /(j)uːpˈsaɪlən, ʊp-, -lɒn/; uppercase Υ, lowercase υ; Greek: ύψιλον ýpsilon [ˈipsilon]) or ypsilon /ɪp-/...

Look up Upsilon, upsilon, υ, Υ, Ʊ, or ʊ in Wiktionary, the free dictionary. Upsilon (Υ or υ) is the 20th letter of the Greek alphabet. Upsilon may also...

Delta Upsilon (ΔΥ), commonly known as DU, is a collegiate men's fraternity founded on November 4, 1834, at Williams College in Williamstown, Massachusetts...

(minuscule: ʊ), called horseshoe or sometimes bucket, inverted omega or Latin upsilon, is a letter of the International Phonetic Alphabet used to transcribe...

Upsilon Andromedae (υ Andromedae, abbreviated Upsilon And, υ And) is a binary star located 44 light-years from Earth in the constellation of Andromeda...

Chi Upsilon Sigma is a Latin-based Greek letter intercollegiate sorority. Following is a list of Chi Upsilon Sigma chapters. The following list includes...

The Upsilon meson ( ϒ ) is a quarkonium state (i.e. flavourless meson) formed from a bottom quark and its antiparticle. It was discovered by the E288...

Psi Upsilon (ΨΥ), commonly known as Psi U, is a North American fraternity, founded at Union College on November 24, 1833. The fraternity reports 50 chapters...

Beta Upsilon Chi is the largest Christian fraternity in the United States. Following is a list of Beta Upsilon Chi chapter. Active chapters are indicated...

letter Y is derived from the Greek letter upsilon. It dates back to the Latin of the first century BC, when upsilon was introduced a second time, this time...