1. high roller a gambler who wagers large sums
  2. hurler (baseball) the person who does the pitching
  3. Holy Roller a member of a religion that expresses ecstatic fervor
  4. high relief a sculptural relief in which forms extend out from the background to at least half their depth
  5. highflier a person of great ability and ambition
  6. highflyer a person of great ability and ambition
  7. holler call out loudly
  8. thriller a suspenseful story, play, or movie
  9. higher law a principle that takes precedent over the laws of society
  10. growler a speaker whose voice sounds like a growl
  11. roller a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
  12. troller a fisherman who uses a hook and line
  13. caroller a singer of carols
  14. hierolatry the worship of saints
  15. highway robbery robbery of travellers on or near a public road
  16. corollary an inference following from the proof of another proposition
  17. horologer someone who makes or repairs watches
  18. hurdler an athlete who runs the hurdles
  19. drollery a comic incident or series of incidents
  20. quarreller a disputant who quarrels