| a personification of the government or people of the U.S.: represented as a tall, lean man with white chin whiskers, wearing a blue tailcoat, red-and-white-striped trousers, and a top hat with a band of stars. |

A figure who stands for the government of the United States and for the United States itself. Uncle Sam — whose initials are the abbreviation of United States — is portrayed as an old man with a gray goatee who sports a top hat and Stars and Stripes clothing. During World War I and World War II, posters of Uncle Sam exhorted young men to join the armed forces. (Compare John Bull.)
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Uncle (Sam)
and Uncle Sugar
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