Trente et quarante is a French card game that has become popular in casinos around the world. It is also known by several other names depending on the region and language. In Italy, the game is called Trentuno, while in Spain it is known as Veintiuno y media. In English-speaking countries, it is often called Red and Black or Rouge et Noir. Other synonyms include Big and Small, Ace-Deuce, and Thirty and Forty. Despite having different names, the game's objective remains the same - to predict which color will come up more times on the cards drawn from the deck.