The definition of Cinco de Mayo stands for the 5th of May, a holiday celebrated in the U.S. and Mexico to celebrate Mexican heritage and Mexico's freedom from France.
(noun)An example of Cinco de Mayo is the 5th of May which celebrates Mexican heritage and commemorates the 1862 defeat of the French at the Battle of Puebla in Mexico.
See Cinco de Mayo in American Heritage Dictionary 4
noun
Origin:
Origin: Spanish
Origin: : cinco, five
Origin: + de, of
Origin: + Mayo, May
.