1. ahead of the game in an advantageous position
  2. ahead of time before the usual time or the time expected
  3. apophthegm a short pithy instructive saying
  4. indefatigable showing sustained enthusiasm with unflagging vitality
  5. athletic game a game involving athletic activity
  6. headstream a stream that forms the source of a river
  7. head game the act of deluding; deception by creating illusory ideas
  8. apothegm a short pithy instructive saying
  9. out of the blue not anticipated
  10. Heterotheca genus of yellow-flowered North American herbs
  11. day of the week any one of the seven days in a week
  12. endogamy marriage within one's own tribe or group as required by custom or law
  13. estate of the realm a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights
  14. video game a game played against a computer
  15. head teacher the educator who has executive authority for a school
  16. outdoor game an athletic game that is played outdoors
  17. autophytic of or relating to organisms (as green plants) that can make complex organic nutritive compounds from simple inorganic sources by photosynthesis
  18. indefatigably with indefatigable energy
  19. yeoman of the guard officer in the (ceremonial) bodyguard of the British monarch
  20. wheat future wheat bought or sold at an agreed price for delivery at a specified future date