Center letter: o
Outer letter: a f g i n r
Answers (53):
  foraging
  afro
  agog
  agora
  angora
  anion
  anon
  argon
  farrago
  farro
  fogging
  fora
  forging
  forgo
  forgoing
  frog
  going
  gong
  gonging
  gonna
  goof
  goofing
  goon
  gorging
  gorgon
  goring
  griffon
  groan
  groaning
  grog
  groin
  ignoring
  info
  iron
  ironing
  noggin
  noir
  nonagon
  noon
  nori
  oaring
  offing
  ongoing
  onion
  orang
  organ
  origin
  rigor
  roan
  roar
  roaring
  roof
  roofing