- a personification of the government of the United States
WordReference Random House Learner's Dictionary of American English © 2026
Un•cle Sam /ˈʌŋkəl ˈsæm/USA pronunciation n. [proper noun]
WordReference Random House Unabridged Dictionary of American English © 2026- Governmenta name used to represent the government or people of the U.S.:Uncle Sam is usually represented as a tall, lean man with white chin whiskers, wearing a blue coat, red-and-white-striped trousers, and a top hat with a band of stars.
Un′cle Sam′,
- Governmenta 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.
- extension of the initials U.south, southern. 1805–15, American.
Collins Concise English Dictionary © HarperCollins Publishers::
Uncle Sam n
'Uncle Sam' also found in these entries (note: many are not synonyms or translations):