seventieth

American  

[sev-uhn-tee-ith] / ˈsɛv ən ti ɪθ /

adjective

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

2. being one of 70 equal parts.

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noun

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

2. the seventieth member of a series.

ˈseventieth British  

/ ˈsɛvəntɪɪθ /

adjective

1. (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

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noun

1. 1. one of 70 approximately equal parts of something

   2. ( as modifier )

      a seventieth part

2. the fraction equal to one divided by 70 ( 1/ 70 )

Etymology

Origin of seventieth

First recorded in 1250–1300, seventieth is from the Middle English word seventithe. See seventy, -eth ²

Example Sentences

Because, as chance would have it, my mother-in-law requested a cruise through Alaska for her seventieth birthday this summer.

From Salon

The letter expresses the Queen Elizabeth II's "grateful thanks" for Charlie's "kind message on the occasion of the seventieth anniversary of my accession to the throne".

From BBC

It is Mr. Nelson’s seventieth solo studio album.

From Washington Times

Last fall, to celebrate the seventieth birthday of the People’s Republic of China, the government planned the largest military parade and “mass pageant” in Beijing’s history.

From The New Yorker

On Wednesday, he returned from a summit in London to mark the seventieth anniversary of NATO, where a hot mike captured some of his fellow world leaders mocking him.

From The New Yorker