y

/wai/
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y

A child writes the letter y on a chalkboard.

Definition

  1. Noun:

    • The 25th letter of the Roman alphabet: "y" is the twenty-fifth and penultimate letter of the modern English alphabet.
    • A silvery metallic element: In chemistry, "Y" is the symbol for yttrium, a metallic element used in various alloys and technologies.

  2. Symbol:

    • An unknown variable: In mathematics, "y" is commonly used to represent an unknown variable or the dependent variable in an equation or function.
    • A shape resembling the letter: An object or structure that is forked or branched, similar to the shape of the uppercase letter Y.
Examples of Usage

  • Noun (Letter): The word "happy" ends with the letter y.In English, the letter y can sometimes function as a vowel.

  • Noun (Element): The compound contains traces of the element Y (yttrium).Yttrium (Y) is used in the production of phosphors for television screens.

  • Symbol (Mathematics): Solve the equation for y.In the graph, the y-axis represents the vertical coordinate.

  • Symbol (Shape): The road splits into a Y junction ahead.The plumbing fixture required a Y-shaped connector.

Advanced Usage

  • "The Y": A common abbreviation for the Young Men's Christian Association (YMCA) or its facilities. He goes swimming at the Y every morning.

  • "Y-chromosome": In genetics, the sex chromosome typically found only in males. The Y-chromosome is passed from father to son.

Variants and Related Words
  • Y-axis (n): The vertical axis in a Cartesian coordinate system.
  • Y-intercept (n): The point where a line or curve crosses the y-axis.
  • Yttrium (n): The full name of the metallic element with the symbol Y.
Synonyms
  • Wye (n): A term for the letter Y, especially in telecommunications or to describe a Y-shaped object (e.g., a rail).
Related Phrases

  • Generation Y: A demographic cohort following Generation X, typically referring to people born in the 1980s and 1990s (also called Millennials). Marketing strategies often target Generation Y.

  • Say why? (pronounced "Y?"): A common informal or textual abbreviation for "why?". He texted me "Y?" to ask why I was late.

y

A child writes the letter y on a chalkboard.

Noun
  1. the 25th letter of the Roman alphabet
  2. a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys

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