Other definitions for z (2 of 6)


Symbol, Mathematics.
  1. an unknown quantity or variable.

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

Other definitions for Z (3 of 6)


or z

[ zee or, especially British, zed; Archaic iz-erd ]

noun,plural Z's or Zs, z's or 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.

  1. something having the shape of a Z.

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

  3. a device, as a printer's type, for reproducing the letterZ or z.

Other definitions for Z (4 of 6)


  1. Astronomy. zenith distance.

  2. zone.

Other definitions for Z (5 of 6)


  1. the 26th in order or in a series.

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

  1. Chemistry, Physics. atomic number.

  2. Electricity. impedance (def. 1).

Other definitions for z. (6 of 6)


  1. zero.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use z in a sentence

British Dictionary definitions for z (1 of 3)


/ maths /

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

  2. an algebraic variable

British Dictionary definitions for z (2 of 3)



/ (zɛd, US ziː) /

nounplural z's, Z's or Zs
  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

    • something shaped like a Z

    • (in combination): a Z-bend in a road

British Dictionary definitions for Z (3 of 3)


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

  2. chem atomic number

  1. physics impedance

  2. zone

  3. currency zaïre

abbreviation for
  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

Other Idioms and Phrases with z


see from soup to nuts (a to z).

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.