Center letter: u
Outer letter: c d e f n o
Answers (50):
  cofounded
  confounded
  cofound
  confound
  cued
  cuff
  cuffed
  deduce
  deduced
  defund
  defunded
  denounce
  denounced
  denude
  denuded
  deuce
  dude
  duff
  dunce
  dune
  dunned
  dunno
  educe
  educed
  endue
  endued
  fecund
  feud
  feuded
  fondue
  found
  founded
  fund
  funded
  noun
  nude
  ounce
  udon
  unceded
  uncuff
  uncuffed
  undefended
  undo
  undone
  undue
  unfed
  unfounded
  unfunded
  unneeded
  unoffended