1. goon an awkward stupid person
  2. go on move forward, also in the metaphorical sense
  3. coon North American raccoon
  4. gown a woman's dress, usually with a close-fitting bodice and a long flared skirt, often worn on formal occasions
  5. goony a variety of albatross with black feet
  6. go in to come or go into
  7. goonie a variety of albatross with black feet
  8. gooney a variety of albatross with black feet
  9. con an argument opposed to a proposal
  10. gain obtain
  11. guano the excrement of sea birds or bats; used as fertilizer
  12. koan a paradoxical anecdote or a riddle that has no solution
  13. gone no longer retained
  14. coin a flat metal piece (usually a disc) used as money
  15. coign the keystone of an arch
  16. gen informal term for information
  17. conn conduct or direct the steering of a ship or plane
  18. gin strong liquor flavored with juniper berries
  19. gun a weapon that discharges a missile at high velocity
  20. Genoa a seaport in northwestern Italy