a legal holiday in the U.S. honoring all veterans of the armed forces: observed (except 1971-77) on Armistice Day
See Veterans Day in American Heritage Dictionary 4
noun
November 11, observed in the United States in honor of veterans of the armed services and in commemoration of the armistice that ended World War I in 1918. In 1954 it was renamed from Armistice Day and given the added significance of honoring veterans.