Center letter: c
Outer letter: d e n u a b
Answers (34):
  abundance
  accede
  acceded
  aced
  acne
  adduce
  adduced
  banc
  cabana
  cabbed
  cadence
  cancan
  cane
  caned
  canna
  canned
  cede
  ceded
  cube
  cubed
  cued
  dance
  danced
  decade
  decadence
  deduce
  deduced
  deuce
  dunce
  educe
  educed
  nuance
  nuanced
  unceded