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  • z
    z
    abbreviation
  • Z
    Z
    noun
    the 26th letter of the English alphabet, a consonant.
  • z.
    z.
    abbreviation
    zero.

z

1 American  

abbreviation

  1. zone.


z 2 American  
Symbol, Mathematics.
  1. an unknown quantity or variable.

  2. (in Cartesian coordinates) the z- axis.


Z 3 American  
[zee, zed, iz-erd] / zi, zɛd, ˈɪz ərd /
Or z

noun

plural

Z's, Zs, z's, zs
  1. the 26th letter of the English alphabet, a consonant.

  2. any spoken sound represented by the letter Z or z, as in zero, zigzag, or buzzer.

  3. something having the shape of a Z .

  4. a written or printed representation of the letter Z or z.

  5. a device, as a printer's type, for reproducing the letter Z or z.


Z 4 American  

abbreviation

  1. Astronomy. zenith distance.

  2. zone.


Z 5 American  
Symbol.
  1. the 26th in order or in a series.

  2. (sometimes lowercase) the medieval Roman numeral for 2000.

  3. Chemistry, Physics. atomic number.

  4. Electricity. impedance.


z. 6 American  

abbreviation

  1. zero.


Z 1 British  

symbol

  1. any unknown, variable, or unspecified factor, number, person, or thing

  2. chem atomic number

  3. physics impedance

  4. zone

  5. currency zaïre

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

abbreviation

  1. Zambia (international car registration)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
z 2 British  
/ ziː, zɛd /

noun

  1. the 26th and last letter and the 20th consonant of the modern English alphabet

  2. a speech sound represented by this letter, in English usually a voiced alveolar fricative, as in zip

    1. something shaped like a Z

    2. ( in combination )

      a Z-bend in a road

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

z 3 British  

symbol

  1. the z- axis or a coordinate measured along the z- axis in a Cartesian or cylindrical coordinate system

  2. an algebraic variable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

z Idioms  
  1. see from soup to nuts (a to z).


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Instead, most millennial and Gen Z employees now accumulate savings in a personal pension pot, which is invested and pays out whatever is in the fund.

From BBC • May 17, 2026

The series had a successful reboot as Gen Z viewers continue to devour vintage programs.

From Los Angeles Times • May 16, 2026

Minus the flash, the neon, the tailoring and the quipping, “LifeHack” is a kind of “Ocean’s Eleven” for Gen Z: a breathless, ingenious caper that moves at about 200 megabits per second.

From The Wall Street Journal • May 14, 2026

"Progress is being achieved by measures on any number of fronts, including the attraction of Gen Z customers despite intense competition," said Richard Hunter, head of markets at Interactive Investor.

From Barron's • May 14, 2026

He doesn’t look anything like me, Z thought.

From "Ruby Holler" by Sharon Creech

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