Definition of heart

• a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines; "he drew a heart and called it a valentine"
• a firm rather dry variety meat (usually beef or veal); "a five-pound beef heart will serve six"
• a playing card in the major suit that has one or more red hearts on it; "he led the queen of hearts"; "hearts were trumps"