Y

Look up Y in Wiktionary, the free dictionary.

Y is the twenty-fifth letter of the Latin alphabet.

Y or y may also refer to:

Places

• Y, Alaska, USA
• Y, Somme, France

Language

• Y (Cyrillic)
• Y (programming language)
• Y (IPA), the IPA letter for a close front rounded vowel

Science

• Yotta (Y), the SI prefix for 10²⁴
• Yocto (y), the SI prefix for 10^-24
• Yttrium, chemical symbol Y
• Year (y), a non-SI abbreviation for this unit of time.
• Yellow, in the CMYK color model
• Y boson
• Y chromosome
• Haplogroup Y (mtDNA)
• Luminance (video), in many video color models, such as YIQ and YUV
• Admittance, the inverse of electrical impedance, Z
• Tyrosine, abbreviated Y or Tyr
• Y, a hypothetical stellar class of ultra-cool dwarf stars

Mathematics

• Dependent variable
• Y-axis
• Y combinator, a fixed-point combinator in combinatory logic
• The Bessel function Y

Other uses

• Yukon, post code Y
• Generation Y
• Basque Y, a Spanish high-speed rail network so called for its Y shape
• YMCA, aka "the Y"
• YWCA, aka "the Y"
• YM-YWHA, aka "the Y"
• Y Window System, a proposed development of the X Window System
• Alleghany Corporation, NYSE ticker symbol Y
• Income, Y
• Economy class, Y
• Y-stations, World War 2 listening stations
• "Y", a poem by Patti Smith from her 1994 book Early Work
• Ⓨ may refer to a typographical symbol in Japanese resale price maintenance.
• Y (game), a board game played on a triangular board
• Y (album), an album by The Pop Group
• Y (New York City Subway service), an unused New York City Subway service label
• Y: The Last Man, a DC comics series by Brian K. Vaughan
• 01011001, an album by Dutch progressive metal project Ayreon

Homonyms

• Why (disambiguation)
• Wye (rail)

This disambiguation page lists articles associated with the same Latin letter. If an internal link led you here, you may wish to change the link to point directly to the intended article.