Center letter: o
Outer letter: c g h i k n
Answers (52):
  chocking
  choking
  hocking
  chignon
  chino
  chock
  cocci
  cock
  cocking
  cocoon
  cocooning
  coho
  coin
  coining
  conch
  conic
  conk
  conking
  conning
  cooing
  cook
  cooking
  ginkgo
  gnocchi
  going
  gong
  gonging
  goon
  hock
  hogging
  honcho
  honing
  honk
  honking
  hooch
  hook
  hooking
  icon
  iconic
  ionic
  knock
  knocking
  kook
  nock
  nocking
  noggin
  nook
  noon
  oink
  oinking
  ongoing
  onion