1. heartbeat the rhythmic contraction and expansion of the arteries with each beat of the heart
  2. hard-boiled (eggs) cooked until the yolk is solid
  3. heartfelt earnest
  4. heart block recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat
  5. hard lead unrefined lead that is hard because of the impurities it contains
  6. heartseed herbaceous vine of tropical America and Africa
  7. heritable capable of being inherited
  8. hartebeest a large African antelope with lyre-shaped horns that curve backward
  9. redoubled become much greater in intensity or size or amount
  10. hard palate the bony part of the roof of the mouth
  11. heartbreak intense sorrow caused by loss of a loved one
  12. heartless lacking in feeling, pity, or kindness
  13. hard-baked baked until hard
  14. hardbacked having a hard back or cover
  15. hardboard a cheap hard material made from wood chips that are pressed together and bound with synthetic resin
  16. hardbound having a hard back or cover
  17. heartland the central region of a country or continent
  18. short-billed having a short beak
  19. heart-leaf wild ginger having persistent heart-shaped pungent leaves
  20. hearable heard or perceptible by the ear

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