heart, bosom -- (the locus of feelings and intuitions; "in your heart you know it is true"; "her story would melt your bosom")
heart, pump, ticker -- (the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; "he stood still, his heart thumping wildly")
heart, mettle, nerve, spunk -- (the courage to carry on; "he kept fighting on pure spunk"; "you haven't got the heart for baseball")
center, centre, middle, heart, eye -- (an area that is approximately central within some larger region; "it is in the center of town"; "they ran forward into the heart of the struggle"; "they were in the eye of the storm")
heart, spirit -- (an inclination or tendency of a certain kind; "he had a change of heart")
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")
heart -- (a firm rather dry variety meat (usually beef or veal); "a five-pound beef heart will serve six")