Hearts, e.g. is a term that can refer to a SUIT in a deck of cards, organs in the human body, and a GAME. The SUIT of hearts is one of four suits in a standard deck of playing cards, along with diamonds, spades, and clubs. The heart is an organ in the human body responsible for pumping blood throughout the body. Finally, Hearts is a card GAME typically played by four players, in which the objective is to have the lowest score at the end of the GAME.