Center letter: i
Outer letter: d m n o t w
Answers (35):
  midtown
  dimwit
  dino
  dint
  ditto
  dominion
  domino
  downwind
  idiom
  idiot
  into
  midi
  mind
  mini
  minim
  minion
  minnow
  mint
  mitt
  motion
  nitwit
  notion
  omit
  onion
  timid
  tint
  tomtit
  twin
  twit
  widow
  wind
  window
  winnow
  wino
  woodwind