seventeenth

American  

[sev-uhn-teenth] / ˈsɛv ənˈtinθ /

adjective

1. next after the sixteenth; being the ordinal number for 17.

2. being one of 17 equal parts.

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noun

• seventeenths
  plural

1. a seventeenth part, especially of one (1/17).

2. the seventeenth member of a series.

seventeenth British  

/ ˈsɛvənˈtiːnθ /

adjective

1. (usually prenominal)

   1. coming after the sixteenth in numbering or counting order, position, time, etc; being the ordinal number of seventeen: often written 17th

   2. ( as noun )

      the ship docks on the seventeenth

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noun

1. 1. one of 17 approximately equal parts of something

   2. ( as modifier )

      a seventeenth part

2. the fraction equal to one divided by 17 ( 1/ 17 )

Other Word Forms

Noun Inflected Forms

• seventeenths
  plural

Etymology

Origin of seventeenth

before 900; seventeen + -th ²; replacing Middle English seventethe, Old English seofontēotha. ( see seven, tithe)

Example Sentences

See Examples For:

seventeenth seventeenths

In the seventeenth season of “It’s Always Sunny in Philadelphia,” the gang is back and more gourmet than ever.

From Salon ● Jul. 22, 2025

Ever since Antonie van Leeuwenhoek discovered the world of bacteria through a microscope in the late seventeenth century, humans have tried to look deeper into the world of the infinitesimally small.

From Science Daily ● Oct. 18, 2023

"Perhaps the biggest change," Krondl writes, "is that the transportation has been cut from the six or seven months it used to take in the seventeenth century to some two weeks today."

From Salon ● Sep. 11, 2023

That being noted, there is no question that things had changed significantly over the course of the seventeenth century: governments were bigger, better organized, and more explicitly hierarchical in organization.

From Textbooks ● Jan. 1, 2020

The traditional historiographical emphasis on the new physics assumes that the mathematization of the world began in the seventeenth century.

From "The Invention of Science" by David Wootton

A whole lot of thirty-thirds and seventeenths is what.

From Time Magazine Archive

A string of thirty-thirds and seventeenths made up Bruce's debut until the tour went to France, where his true potential was displayed for everyone to see.

From Time Magazine Archive

She contributes five, and Sweden twelve, seventeenths of the support of the royal family.

From Due North or Glimpses of Scandinavia and Russia by Maturin Murray Ballou