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

Whether Jefferson had any knowledge or opinion of Hamilton’s fondness for Laurens is unknown.

From Salon ● Jul. 27, 2026

The Thomas Jefferson Foundation, which owns Monticello and runs its public educational programs, gradually came around to acknowledging the full subjecthood of Sally Hemings, to the chagrin of some visitors.

From Salon ● Jul. 27, 2026

In response, Jefferson started a newspaper contest to elicit plans for what became the Capitol, designed by Dr. William Thornton, the amateur architect who won the contest.

From The Wall Street Journal ● Jul. 24, 2026

Syd and I are talking over coffee at a crowded spot on Jefferson Boulevard that she says she visits every day.

From Los Angeles Times ● Jul. 23, 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