noun
Usage: usually capitalized U&S
Etymology: from U.S., abbreviation of United States; probably from an originally jocular interpretation of the letters United States stamped on casks of meat supplied to the United States Army during the War of 1812 as standing for Uncle Sam, nickname of Samuel Wilson died 1854 American meat packer
1. : the United States government personified
doesn't like people who work for Uncle Sam — Merle Miller
2. : the American nation or people
a distorted picture of Uncle Sam