eightieth

[ey-tee-ith]

adjective

1. next after the seventy-ninth; being the ordinal number for 80.

2. being one of 80 equal parts.

noun

1. an eightieth part, especially of one (1/80).

2. the eightieth member of a series.

ˈeightieth

/ ˈeɪtɪɪθ /

adjective

1. (usually prenominal)

   1. being the ordinal number of eighty in numbering or counting order, position, time, etc: often written 80th

   2. ( as noun )

      the eightieth in succession

noun

1. 1. one of 80 approximately equal parts of something

   2. ( as modifier )

      an eightieth part

2. the fraction equal to one divided by 80 ( 1/ 80 )

Word History and Origins

Origin of ˈeightieth¹

1350–1400; Middle English eightetithe, Old English ( hund ) eahtatigotha eightieth. See eighty, -th ²

Example Sentences

At the time, scientists thought that something as small as viroids, which are one eightieth the size of many viruses, were too minuscule to cause an infection.

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The Golden Globes, which is now in its eightieth year, honours work in both film and television.

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“Most actors,” he writes, “are wise enough to know that you’re often second, third or even eightieth choice for the role.”

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Just before her eightieth birthday, a reporter from the Houston Chronicle visited.

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“In a hotel mirror, I have seen with surprise an old man in his eightieth year, then forgotten him,” Thubron wrote.

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