Meaning of the word "Washington, D.C." in English

What does "Washington, D.C." mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

Washington, D.C.

US /ˌwɑːʃɪŋtən diːˈsiː/
UK /ˈwɒʃɪŋtən diː siː/
"Washington, D.C." picture

Noun

the capital city of the United States of America, located on the Potomac River between Maryland and Virginia

Example:
The President resides in Washington, D.C.
Many important government buildings are located in Washington, D.C.