[Sp. seeng-kaw th
e mah-yaw] 
| a Mexican holiday marking the victory of Mexican troops over French forces in Puebla, Mexico, on May 5, 1862. |
| Cin·co de Ma·yo (sēng'kō də mä'yō) n. May 5, observed by Mexican communities in Latin America and Mexican-American communities in the United States in commemoration of the 1862 defeat of French troops at the Battle of Puebla. [Spanish : cinco, five + de, of + Mayo, May.] |