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90s Slang You Should Know


[sev-uh n-tee-ith] /ˈsɛv ən ti ɪθ/
next after the sixty-ninth; being the ordinal number for 70.
being one of 70 equal parts.
a seventieth part, especially of one (1/70).
the seventieth member of a series.
Origin of seventieth
First recorded in 1250-1300, seventieth is from the Middle English word seventithe. See seventy, -eth2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for seventieth
Contemporary Examples
Historical Examples
  • One's thirtieth birthday and one's seventieth are days that press their message home with iron hand.

  • There he remained till his death in 929, in the seventieth year of his age.

    Shakespeare's Family Mrs. C. C. Stopes
  • The gathering to celebrate his seventieth birthday was unique.

  • On his seventieth birthday Mr. Bright justified what he called the policy of 1846.

    Captains of Industry James Parton
  • December 29, 1879, Mr. Gladstone attained the seventieth year of his age.

    The Grand Old Man Richard B. Cook
  • On his seventieth birthday Mark Twain was dazzled by his liberty.

    The Ordeal of Mark Twain Van Wyck Brooks
  • Old guinea-pig Cornell, celebrating his seventieth birthday as the medical experimentation went on and on.

    Highways in Hiding George Oliver Smith
  • He died in that city on the 9th of August 1672, in the seventieth year of his age.

    Letters of Samuel Rutherford Samuel Rutherford
  • He found Uriah Levy grown frail and listless, the fires of his youth beginning to burn low as he neared his seventieth year.

    The New Land Elma Ehrlich Levinger
British Dictionary definitions for seventieth


(usually prenominal)
  1. being the ordinal number of seventy in numbering or counting order, position, time, etc: often written 70th
  2. (as noun): the seventieth in line
  1. one of 70 approximately equal parts of something
  2. (as modifier): a seventieth part
the fraction equal to one divided by 70 (1/70)
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
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Word Origin and History for seventieth

late 13c., from seventy + -th (1).

Online Etymology Dictionary, © 2010 Douglas Harper
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