seventieth

[ sev-uhn-tee-ith ]

/ ˈsɛv ən ti ɪθ /

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adjective

next after the sixty-ninth; being the ordinal number for 70.

being one of 70 equal parts.

noun

a seventieth part, especially of one (1/70).

the seventieth member of a series.

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Origin of seventieth

First recorded in 1250–1300, seventieth is from the Middle English word seventithe.See seventy, -eth²

Words nearby seventieth

Seventh-Day, Seventh-Day Adventist, Seventh-Day Adventists, seventh heaven, seventh-inning stretch, seventieth, seventy, seventy-eight, seventy-eighth, seventy-fifth, seventy-first

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use seventieth in a sentence

It would seem, at best, an uneasy fit: Paul Newman and his seventieth birthday, this month.
The Stacks: The Eyes of Winter: Paul Newman at 70|Peter Richmond|October 11, 2014|DAILY BEAST
On his seventieth birthday Mr. Bright justified what he called the policy of 1846.
Captains of Industry|James Parton
Sir Peregrine himself at this time was an old man, having passed his seventieth year.
Orley Farm|Anthony Trollope
A number of more or less notable things happened in this, Mark Twain's seventieth year.
Mark Twain, A Biography, 1835-1910, Complete|Albert Bigelow Paine

His wife was a writer of ability and after reaching her seventieth year wrote a book of poems.
Lyman's History of old Walla Walla County, Vol. 2 (of 2)|William Denison Lyman
In other places he says that Mrs. Thrale's thirty-fifth year coincided with Johnson's seventieth.
Autobiography, Letters and Literary Remains of Mrs. Piozzi (Thrale) (2nd ed.) (2 vols.)|Mrs. Hester Lynch Piozzi

British Dictionary definitions for seventieth

seventieth

/ (ˈsɛvəntɪɪθ) /

adjective

(usually prenominal)

being the ordinal number of seventy in numbering or counting order, position, time, etc: often written 70th
(as noun)the seventieth in line

noun

one of 70 approximately equal parts of something
(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