Center letter: c
Outer letter: f i m n o r
Answers (34):
  confirm
  cirri
  cocci
  cocoon
  coffin
  coif
  coin
  coir
  comic
  common
  conform
  conic
  corn
  croc
  croci
  croon
  foci
  formic
  icon
  iconic
  ionic
  ironic
  micro
  microform
  micromini
  micron
  mimic
  morocco
  moronic
  noncom
  omicron
  ricin
  rococo
  romcom