1. (n.)heart a muscular organ in vertebrates (four-chambered in mammals and birds, three-chambered in reptiles and amphibians, and two-chambered in fishes) that receives blood from the veins and pumps it through the arteries to oxygenate the blood during its circuit.
23. heart to allow one's feelings, esp. of love, to show.
Etymology: (bef. 900; ME herte, OE heorte, c. OS herta, OHG herza, ON hjarta, Go hairtō; akin to L cor (see cordial ), Gk kardía (see cardio -))
Definition of 'Heart'
Princeton's WordNet
1. (noun)heart, bosom the locus of feelings and intuitions "in your heart you know it is true"; "her story would melt your bosom"
2. (noun)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"
3. (noun)heart, mettle, nerve, spunk the courage to carry on "he kept fighting on pure spunk"; "you haven't got the heart for baseball"
4. (noun)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"
5. (noun)kernel, substance, core, center, centre, essence, gist, heart, 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"
6. (noun)heart, spirit an inclination or tendency of a certain kind "he had a change of heart"
7. (noun)heart a planefigure 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"
8. (noun)heart a firm rather dry varietymeat (usually beef or veal) "a five-pound beef heart will serve six"
9. (noun)affection, affectionateness, fondness, tenderness, heart, warmness, warmheartedness, philia a positivefeeling of liking "he had trouble expressing the affection he felt"; "the child won everyone's heart"; "the warmness of his welcome made us feel right at home"
10. (noun)heart a playingcard in the majorsuit that has one or more red hearts on it "he led the queen of hearts"; "hearts were trumps"
4. heart at heart in the most essential way He has problems, but he's a good person at heart.
5. heart from the (bottom of your) heart indicates words are meant sincerely I want to express my gratitude from the bottom of my heart.
6. heart the center or middle a city in the heart of wine country
7. heart ♥ ) used to represent a heart She drew a heart.
8. heart learn/know by heart to learn or know sth without having to look at it She knew the poem by heart.
9. heart your heart goes out to indicates you feelsympathy for sb Our hearts go out to those who lost their homes.
10. heart sb's heart is in the right place indicates sb means to do the right things, even if they do the wrongthing I know she's annoying sometimes, but her heart's in the right place.
11. heart sb's heart is not in sth indicates sb does not feelenthusiasm She was trying, but her heart wasn't in it.
12. heart sb's heart misses a beat indicates sb suddenly feels excited or scared I heard her voice, and my heart missed a beat.
13. heart your heart sinks indicates sb begins to feel sad or disappointed His heart sank at the sight of the mess.
14. heart not have the heart to not do sth because it willupset sb I didn't have the heart to tell him his mother wasn't coming.
15. heart set your heart on /have your heart set on to want sth very much The team has their heart set on winning.
16. heart take heart used to focus on sth positive in order to encourage sb Take heart - it'll all be over tomorrow.
17. heart take to heart to be very upset by sth sb says about you She really took his criticism to heart.
18. heart to your heart's content as much or as many times as you want Let them complain to their heart's content!
19. heart with all your heart completely I love her with all my heart.
Definition of 'Heart'
Webster Dictionary
1. (noun)Heart a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood
2. (noun)Heart the seat of the affections or sensibilities, collectively or separately, as love, hate, joy, grief, courage, and the like; rarely, the seat of the understanding or will; -- usually in a good sense, when no epithet is expressed; the better or lovelier part of our nature; the spring of all our actions and purposes; the seat of morallife and character; the moral affections and character itself; the individualdisposition and character; as, a good, tender, loving, bad, hard, or selfish heart
3. (noun)Heart the nearest the middle or center; the part most hidden and within; the inmost or most essentialpart of any body or system; the source of life and motion in any organization; the chief or vital portion; the center of activity, or of energetic or efficient action; as, the heart of a country, of a tree, etc
5. (noun)Heart vigorous and efficient activity; power of fertile production; condition of the soil, whether good or bad
6. (noun)Heart that which resembles a heart in shape; especially, a roundish or ovalfigure or object having an obtuse point at one end, and at the other a corresponding indentation, -- used as a symbol or representative of the heart
7. (noun)Heart one of a series of playing cards, distinguished by the figure or figures of a heart; as, hearts are trumps
Definitions of Heart 
Afrikaans: hart
Arabic: قَلْب
Bulgarian: сърце
Brazilian: coração
Czech: srdce; srdeční; na srdce
German: das Herz; Herz-...
Danish: hjerte; hjerte-
Greek: καρδιά
Spanish: corazón
Estonian: süda
Farsi: قلب
Finnish: sydän
French: coeur
Hebrew: לֵב
Hindi: ह्रदय
Croatian: srce; srcani
Hungarian: szív
Indonesian: jantung
Icelandic: hjarta
Italian: cuore
Japanese: 心臓
Korean: 심장
Lithuanian: širdis
Latvian: sirds; sirds-
Malay: jantung
Dutch: hart
Norwegian: hjerte
Polish: serce
Persian: قلب
Pashto: زړه ، منځ ، مركز
Portuguese: coração
Romanian: inimă
Russian: сердце
Slovak: srdce; srdcový; na srdce
Slovenian: srce
Serbian: srce
Swedish: hjärta; hjärt-
Thai: หัวใจ (อวัยวะ)
Turkish: kalp
Taiwanese: 心臟
Ukrainian: серце
Urdu: دل ، قلب
Vietnamese: trái tim
Chinese: 心脏
