definition of
heart

[1] #1 heart n. [bosom] the locus of feelings and intuitions; "in your heart you know it is true"; "her story would melt your bosom". wn

[2] #2 heart n. [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". wn

[3] #3 heart n. [mettle, nerve, spunk] the courage to carry on; "he kept fighting on pure spunk"; "you haven't got the heart for baseball". wn

[4] #4 heart n. [center, centre, middle, 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". wn

[5] #5 heart n. [kernel, substance, core, center, centre, essence, gist, heart and soul, inwardness, marrow, meat, nub, pith, sum, nitty-gritty] the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story". wn