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  

/ ˌdʒɛfəˈsəʊnɪən, 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

Jefferson, his wife and their four children set up the syndicate in July 2025 to celebrate his birthday.

From BBC ● Aug. 12, 2026

It appears to be a three-way race between rookie Genesis Smith, Tony Jefferson and RJ Mickens.

From Los Angeles Times ● Aug. 12, 2026

As Thomas Jefferson wrote 210 years ago last month:

From Slate ● Aug. 3, 2026

Eston Hemings was born on May 21, 1808, and raised in slavery at Monticello, the Jefferson plantation in Virginia.

From Salon ● Jul. 27, 2026

At the age of thirty-three, Martha Jefferson died.

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