WordReference Random House Learner's Dictionary of American English © 2019
heart /hɑrt/USA pronunciation   n. 
  1. Anatomy[countable] a muscular organ in humans and many animals that receives blood from the veins and pumps it through the arteries to other parts of the body.
  2. the center of a person's total personality, esp. of a person's intuition or sensibilities:[countable]In your heart you know it's true.
  3. capacity for sympathy;
    affection:[countable;  usually singular]a very hard heart (= not having sympathy). His heart moved him to help the needy.
  4. [uncountable] spirit, courage, or enthusiasm:no longer had the heart to argue.See take heart below.
  5. the innermost or central part of anything:[countable;  usually singular]We marched through the heart of town.
  6. the essential part;
    core:[countable]Let's get to the heart of the matter.
  7. [countable] a shape with rounded sides meeting in a point at the bottom and curving inward to a cusp at the top.
  8. Games[countable] a card of the suit that has such a shape as the symbol of the suit.
  9. Gameshearts: 
    • the suit of cards so marked.
    • [uncountable;  used with a singular verb] a game in which the players try to take all the hearts, or to avoid taking any of them.
  1. Idiomsafter one's own heart, agreeing with one's likes or one's preference:a girl after his own heart.
  2. Idiomsat heart, in reality;
    basically:very kind at heart.
  3. Idiomsbreak someone's heart, to cause someone to be deeply unhappy.
  4. Idiomsby heart, entirely from memory:recited the entire poem by heart.
  5. Idiomseat one's heart out, to be very sorry about something;
    grieve:I'm eating my heart out over losing you.
  6. Idiomsfrom (the bottom of ) one's heart, with complete sincerity:I wished her success from the bottom of my heart.
  7. Idiomshave a heart, to show compassion and mercy:Have a heart and set the caged bird free.
  8. Idiomshave one's heart in one's mouth, to be extremely anxious or fearful:My heart was in my mouth when I got up to speak to the crowd.
  9. Idiomshave one's heart in the right place, to wish to do the proper thing:Yes, he's made mistakes, but his heart is in the right place.
  10. Idiomsin one's heart of hearts, in one's private thoughts or feelings:In your heart of hearts you know she's the best for the job.
  11. Idiomslose one's heart to, [ + obj] to fall in love with.
  12. Idiomsnear or close to one's heart, of great interest or concern to one:a project very close to her heart.
  13. Idiomsset one's heart at rest, to banish one's fears or anxieties:The good economic news set the president's heart at rest.
  14. Idiomsset one's heart on or have one's heart set on, [ + obj] to want (something) a great deal:He set his heart on going to Tanzania. He had his heart set on that job.
  15. Idiomstake heart, [no obj] to regain one's courage or confidence:He took heart when things began to improve.
  16. Idiomstake to heart: 
    • to consider seriously;
      to be affected deeply by: [+ to heart + object]He took to heart most of her comments.[+ object + to heart]He took it to heart.
    • to grieve over: [+ object + to heart]He took the loss to heart.[+ to heart + object]He took to heart her sudden death.
  17. Idiomsto one's heart's content, for as long as one wishes:The children played to their heart's content.
  18. Idiomswear one's heart on one's sleeve, to allow one's feelings, esp. of love, to show.

WordReference Random House Unabridged Dictionary of American English © 2019
heart  (härt),USA pronunciation n. 
  1. Anatomya hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
  2. Zoology
    • the homologous structure in other vertebrates, consisting of four chambers in mammals and birds and three chambers in reptiles and amphibians.
    • the analogous contractile structure in invertebrate animals, as the tubular heart of the spider and earthworm.
  3. the center of the total personality, esp. with reference to intuition, feeling, or emotion:In your heart you know I'm an honest man.
  4. the center of emotion, esp. as contrasted to the head as the center of the intellect:His head told him not to fall in love, but his heart had the final say.
  5. capacity for sympathy;
    affection:His heart moved him to help the needy.
  6. spirit, courage, or enthusiasm:His heart sank when he walked into the room and saw their gloomy faces.
  7. the innermost or central part of anything:Notre Dame stands in the very heart of Paris.
  8. the vital or essential part;
    core:the heart of the matter.
  9. the breast or bosom:to clasp a person to one's heart.
  10. a person (used esp. in expressions of praise or affection):dear heart.
  11. a conventional shape with rounded sides meeting in a point at the bottom and curving inward to a cusp at the top.
  12. Gamesa red figure or pip of this shape on a playing card.
  13. Gamesa card of the suit bearing such figures.
  14. Gameshearts: 
    • (used with a sing. or pl. v.) the suit so marked:Hearts is trump. Hearts are trump.
    • (used with a sing. v.) a game in which the players try to avoid taking tricks containing this suit.
  15. Botanythe core of a tree;
    the solid central part without sap or albumen.
  16. Geneticsgood condition for production, growth, etc., as of land or crops.
  17. TextilesAlso called  core. [Ropemaking.]a strand running through the center of a rope, the other strands being laid around it.
  18. Idiomsafter one's own heart, in keeping with one's taste or preference:There's a man after my own heart!
  19. Idiomsat heart, in reality;
    basically:At heart she is a romantic.
  20. Idiomsbreak someone's heart, to cause someone great disappointment or sorrow, as to disappoint in love:The news that their son had been arrested broke their hearts.
  21. Idiomsby heart, by memory;
    word-for-word:They knew the song by heart.
  22. Idiomscross one's heart, to maintain the truth of one's statement;
    affirm one's integrity:That's exactly what they told me, I cross my heart!
  23. Idiomsdo someone's heart good, to give happiness or pleasure to;
    delight:It does my heart good to see you again.
  24. Idiomseat one's heart out, to have sorrow or longing dominate one's emotions;
    grieve inconsolably:The children are eating their hearts out over their lost dog.
  25. Idiomsfrom the bottom of one's heart, with complete sincerity. Also,  from one's heart, from the heart. 
  26. Idiomshave a heart, to be compassionate or merciful:Please have a heart and give her another chance.
  27. Idiomshave at heart, to have as an object, aim, or desire:to have another's best interests at heart.
  28. Idiomshave one's heart in one's mouth, to be very anxious or fearful:He wanted to do the courageous thing, but his heart was in his mouth.
  29. Idiomshave one's heart in the right place, to be fundamentally kind, generous, or well-intentioned:The old gentleman may have a stern manner, but his heart is in the right place.
  30. Idiomsheart and soul, enthusiastically;
    completely:They entered heart and soul into the spirit of the holiday.
  31. Idiomsin one's heart of hearts, in one's private thoughts or feelings;
    deep within one:He knew, in his heart of hearts, that the news would be bad.
  32. Idiomslose one's heart to, to fall in love with:He lost his heart to the prima ballerina.
  33. Idiomsnear one's heart, of great interest or concern to one:It is a cause that is very near his heart.Also,  close to one's heart. 
  34. Idiomsnot have the heart, to lack the necessary courage or callousness to do something:No one had the heart to tell him he was through as an actor.
  35. Idiomsset one's heart against, to be unalterably opposed to:She had set her heart against selling the statue.Also,  have one's heart set against. 
  36. Idiomsset one's heart at rest, to dismiss one's anxieties:She couldn't set her heart at rest until she knew he had returned safely.
  37. Idiomsset one's heart on, to wish for intensely;
    determine on:She has set her heart on going to Europe after graduation.Also,  have one's heart set on. 
  38. Idiomstake heart, to regain one's courage;
    become heartened:Her son's death was a great blow, but she eventually took heart, convinced that God had willed it.
  39. Idiomstake or  lay to heart: 
    • to think seriously about;
      concern oneself with:He took to heart his father's advice.
    • to be deeply affected by;
      grieve over:She was prone to take criticism too much to heart.
  40. Idiomsto one's heart's content, until one is satisfied;
    as much or as long as one wishes:The children played in the snow to their heart's content.
  41. Idiomswear one's heart on one's sleeve: 
    • to make one's intimate feelings or personal affairs known to all:She was not the kind who would wear her heart on her sleeve.
    • to be liable to fall in love;
      fall in love easily:How lovely to be young and wear our hearts on our sleeves!
  42. Idiomswith all one's heart: 
    • with earnestness or zeal.
    • with willingness;
      cordially:She welcomed the visitors with all her heart.

  1. [Archaic.]
    • to fix in the heart.
    • to encourage.
  • bef. 900; Middle English herte, Old English heorte; cognate with Dutch hart, German Herz, Old Norse hjarta, Gothic hairtō; akin to Latin cor (see cordial, courage), Greek kardía (see cardio-)

Collins Concise English Dictionary © HarperCollins Publishers::

heart /hɑːt/ n
  1. the hollow muscular organ in vertebrates whose contractions propel the blood through the circulatory system. In mammals it consists of a right and left atrium and a right and left ventricle
    Related adjective(s): cardiac
  2. the corresponding organ or part in invertebrates
  3. this organ considered as the seat of life and emotions, esp love
  4. emotional mood or disposition: a happy heart, a change of heart
  5. tenderness or pity: you have no heart
  6. courage or spirit; bravery
  7. the inmost or most central part of a thing: the heart of the city
  8. the most important or vital part: the heart of the matter
  9. (of vegetables such as cabbage) the inner compact part
  10. the part nearest the heart of a person; breast: she held him to her heart
  11. a dearly loved person: usually used as a term of address: dearest heart
  12. a conventionalized representation of the heart, having two rounded lobes at the top meeting in a point at the bottom
  13. a red heart-shaped symbol on a playing card
  14. a card with one or more of these symbols or (when pl.) the suit of cards so marked
  15. a fertile condition in land, conducive to vigorous growth in crops or herbage (esp in the phrase in good heart)
  16. after one's own heartappealing to one's own disposition, taste, or tendencies
  17. break one's heart, break someone's heartto grieve or cause to grieve very deeply, esp through love
  18. by heartby committing to memory
  19. eat one's heart outto brood or pine with grief or longing
  20. from one's heart, from the bottom of one's heartvery sincerely or deeply
  21. have one's heart in one's mouth, have one's heart in one's throatto be full of apprehension, excitement, or fear
  22. have one's heart in the right placeto be kind, thoughtful, or generous
  23. have the heart ⇒ (usually used with a negative) to have the necessary will, callousness, etc (to do something): I didn't have the heart to tell him
  24. heart of heartsthe depths of one's conscience or emotions
  25. heart of oaka brave person
  26. lose heartto become despondent or disillusioned (over something)
  27. lose one's heart toto fall in love with
  28. set one's heart onto have as one's ambition to obtain; covet
  29. take heartto become encouraged
  30. take to heartto take seriously or be upset about
  31. wear one's heart on one's sleeveto show one's feelings openly
  32. with all one's heart, with one's whole heartvery willingly
  1. (intransitive) (of vegetables) to form a heart

See also heartsEtymology: Old English heorte; related to Old Norse hjarta, Gothic hairtō, Old High German herza, Latin cor, Greek kardia, Old Irish cride

'heart' also found in these entries:
Collocations: the human heart, check your heart rate, a [pig, rat] heart, more...

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