Center letter: c
Outer letter: g i l n o u
Answers (44):
  unclogging
  uncoiling
  cling
  clinging
  clinic
  clog
  clogging
  cloning
  cluing
  clung
  cocci
  cocoon
  cocooning
  coil
  coiling
  coin
  coining
  colic
  colon
  colonic
  conic
  conning
  cooing
  cool
  cooling
  council
  cuing
  cull
  culling
  cunning
  icing
  icon
  iconic
  illogic
  inclining
  ionic
  loci
  loco
  logic
  nuncio
  oculi
  unclog
  uncoil
  uncool