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

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