Jefferson

American  

[jef-er-suhn] / ˈdʒɛf ər sən /

noun

1. Joseph, 1829–1905, U.S. actor.

2. Thomas, 1743–1826, U.S. statesman, diplomat, architect, and author: 3rd president of the U.S. 1801–09.

3. a river in southwestern Montana, flowing generally northeast to join the Madison and Gallatin rivers to form the Missouri River. 225 miles (362 km) long.

4. Mount Jefferson, a mountain in northwestern Oregon, in the Cascade Range. 10,497 feet (3,199 meters).

5. Mount Jefferson, a mountain in northern New Hampshire, in the Presidential Range of the White Mountains. 5,715 feet (1,742 meters).

6. a male given name.

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Jefferson British  

/ ˈdʒɛfəsən /

noun

1. Thomas. 1743–1826, US statesman: secretary of state (1790–93); third president (1801–09). He was the chief drafter of the Declaration of Independence (1776), the chief opponent of the centralizing policies of the Federalists under Hamilton, and effected the Louisiana Purchase (1803)

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Other Word Forms

• Jeffersonian
  adjective

Example Sentences

See Examples For:

Jefferson

It was the first measles-related death in Jefferson County, according to county coroner Greg Furlong.

From The Wall Street Journal ● Sep. 13, 2026

Centennial has dealt with a lot of injuries to the offensive line this season, which allowed Mater Dei to get multiple sacks and hurries on Jefferson.

From Los Angeles Times ● Sep. 12, 2026

Jefferson famously said if forced to choose between living without newspapers and living without government, he’d prefer the latter.

From The Wall Street Journal ● Sep. 11, 2026

Following the ruling, the About Damn Time singer, whose real name is Melissa Viviane Jefferson, thanked her lawyers in her Instagram post.

From BBC ● Sep. 2, 2026

To all who saw the couple, including Monticello’s enslaved people, Martha and Thomas Jefferson made a loving match.

From "In the Shadow of Liberty" by Kenneth C. Davis