nineteenth

American  

[nahyn-teenth] / ˈnaɪnˈtinθ /

adjective

1. next after the eighteenth; being the ordinal number for 19.

2. being one of 19 equal parts.

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noun

• nineteenths
  plural

1. a nineteenth part, especially of one (1/19).

2. the nineteenth member of a series.

nineteenth British  

/ ˌnaɪnˈtiːnθ /

adjective

1. (usually prenominal)

   1. coming after the eighteenth in numbering or counting order, position, time, etc, being the ordinal number of nineteen. Often written: 19th

   2. ( as noun )

      the nineteenth was rainy

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noun

1. 1. one of 19 approximately equal parts of something

   2. ( as modifier )

      a nineteenth part

2. the fraction that is equal to one divided by 19 ( 1/ 19 )

Other Word Forms

Noun Inflected Forms

• nineteenths
  plural

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Etymology

Origin of nineteenth

before 900; Middle English nyntenthe ( see nineteen, -th ²); replacing nientethe, Old English nigonteotha; see nine, tithe

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Example Sentences

See Examples For:

nineteenth

The most recent rupture likely occurred during the nineteenth century.

From Science Daily ● May 19, 2026

“No one considered gradations of mental illness in the nineteenth century,” she writes.

From The Wall Street Journal ● May 11, 2026

The company's new show is an ambitious production of a 2006 Broadway musical, a challenging coming of age story about a group of young people in a strict nineteenth century community.

From BBC ● Feb. 9, 2026

Caged birds were used as living carbon monoxide detectors starting in the late nineteenth century — thanks to their highly efficient respiratory systems, the birds died from gas leaks long before human miners did.

From Los Angeles Times ● Mar. 7, 2025

The Galapagos Islands, to give one famous example, remained uninhabited by humans until the nineteenth century, thus preserving their unique menagerie, including their giant tortoises, which, like the ancient diprotodons, show no fear of humans.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

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