1. research a seeking for knowledge
  2. horseshoe arch a round arch that widens before rounding off
  3. hierarch a person who holds a high position in a hierarchy
  4. horse-race compete in a horse race
  5. horse race a contest of speed between horses
  6. hierarchy a series of ordered groupings within a system
  7. Moorish arch a round arch that widens before rounding off
  8. hierarchic classified according to various criteria into successive levels or layers
  9. horsefish any of several silvery marine fishes with very flat bodies
  10. harasser a persistent tormentor
  11. hemal arch a structure arising ventrally from a vertebral centrum and enclosing the caudal blood vessels
  12. hearsay rule a rule that declares not admissible as evidence any statement other than that by a witness
  13. hair-shirt self-sacrificing or austere
  14. hair shirt an uncomfortable shirt made of coarse animal hair
  15. horseshoer a person who shoes horses
  16. heretic a person whose religious beliefs conflict with church dogma
  17. hard rush tall rush of temperate regions
  18. horseshoe U-shaped plate nailed to underside of horse's hoof
  19. horseshow a competitive exhibition of horses
  20. pressure-wash wash before painting to remove old paint and mildew

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