Z, z

Z, z

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.
  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.

  1. zeptosecond.

noun (used with a plural verb) Slang.

  1. sleep (often used with grab, catch, etc.): to grab some z’s before dinner.


  1. one sextillionth (10-21) of a second. Abbreviation: zsec, zs
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