jefferson

IPA/ˌdʒef.ə.sən ˈsɪt.i/
KK[dʒˈɛfɚsən]IPA/ˌdʒef.ɚ.sən ˈsɪt̬.i/

jefferson — noun

1. Thomas Jefferson (1743–1826), the American politician who wrote most of the Decl

1.nounB1
Definition

Thomas Jefferson (1743–1826), the American politician who wrote most of the Declaration of Independence and later served as the third president of the United States from 1801 to 1809.

Example

The guide showed the tourists a letter that Jefferson wrote in 1805.

possessive: Jefferson + past-tense verb for historical actions

Sari read about Jefferson's presidency in her American history textbook.

Usage Note

Often used with a possessive ('Jefferson's') to refer to things associated with him, such as his writings, policies, or home.

2. A river in southwestern Montana, about 320 km long, that flows northward and joi

2.nounB2
Definition

A river in southwestern Montana, about 320 km long, that flows northward and joins the Madison and Gallatin Rivers to form the Missouri River.

Example

The Jefferson River winds through a wide valley in southwestern Montana.

present-tense description of geographical feature

Kwame caught a trout while fishing along the Jefferson River last summer.

Etymology

English

The surname Jefferson comes from the English given name Jeffrey, meaning 'son of Geoffrey.' The Jefferson River in Montana was named for President Thomas Jefferson during the Lewis and Clark expedition in 1805.