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• century
  century

  noun

  a period of 100 years.
• -century
  -century

  a combining form of century, affixed to the number that specifies the 100-year span cited, and used only as an adjective.

century

¹ American  

[sen-chuh-ree] / ˈsɛn tʃə ri /

noun

centuries plural

1. a period of 100 years.

2. one of the successive periods of 100 years reckoned forward or backward from a recognized chronological epoch, especially from the assumed date of the birth of Jesus.

3. any group or collection of 100.

   a century of limericks.

4. (in the ancient Roman army) a company, consisting of approximately 100 men.

5. one of the voting divisions of the ancient Roman people, each division having one vote.

6. (initial capital letter) a style of type.

7. Slang. a hundred-dollar bill; 100 dollars.

8. Sports. a race of 100 yards or meters, as in track or swimming, or of 100 miles, as in bicycle racing.

9. Cricket. a score of at least 100 runs made by one batsman in a single inning.

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-century ² American  

[sen-chuh-ree] / ˈsɛn tʃə ri /

1. a combining form of century, affixed to the number that specifies the 100-year span cited, and used only as an adjective.

   19th-century American literature;

   a collection of 6th-century metal sculptures that was stolen in the late 20th century.

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century British  

/ ˈsɛntʃərɪ /

noun

1. a period of 100 years

2. one of the successive periods of 100 years dated before or after an epoch or event, esp the birth of Christ

3. 1. a score or grouping of 100

      to score a century in cricket

   2. ( as modifier )

      the basketball team passed the century mark in their last game

4. (in ancient Rome) a unit of foot soldiers, originally 100 strong, later consisting of 60 to 80 men See also maniple

5. (in ancient Rome) a division of the people for purposes of voting

6. (often capital) a style of type

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century Idioms  

1. see turn of the century.

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Other Word Forms

• half-century
  noun

Etymology

Origin of century

First recorded in 1525–35; from Latin centuria “unit made up of 100 parts (especially a company of soldiers),” equivalent to cent(um) “hundred” + -uria, perhaps extracted from decuria “a division of 10 men”; see decury

Explanation

100 years is called a century. The computer, the television, and video games were all invented in the twentieth century. People are now wondering what the twenty-first century holds for us. The noun century comes from the Latin word centuria, which was a group of 100, particularly a group of 100 Roman soldiers (one of 16 such groups in a Roman legion). The word today still can refer to 100 of something. In sports, a century is a score of 100 in a game of cricket. A race of 100 yards or 100 miles is also sometimes called a century. In slang, century can also mean a 100 dollar bill.

Example Sentences

Chicken breasts are $3.58 a pound on average, less than half the price of a pound of ground beef, according to the Century Foundation and Groundwork Collaborative report.

From MarketWatch • May 22, 2026

Before the legal blowout, Murdoch previously served as the chief executive of major global media companies like 21st Century Fox and Europe’s Sky Group.

From Los Angeles Times • May 20, 2026

The House passed its version of the legislation, called the 21st Century Road to Housing Act, by a vote of 396-13, with wide bipartisan support.

From Barron's • May 20, 2026

Seattle’s Century 21 Exposition took place in the shadow of the Cold War, following the Soviet Union’s launch of Sputnik, the world’s first artificial Earth satellite.

From The Wall Street Journal • May 16, 2026

In her book Raising America: Experts, Parents, and a Century of Advice About Children, Ann Hulbert documented how parenting experts contradict one another and even themselves.

From "Freakonomics: A Rogue Economist Explores the Hidden Side of Everything" by Steven D. Levitt