Center letter: k
Outer letter: c d e h n u
Answers (34):
  chunked
  unchecked
  check
  checked
  cheek
  chuck
  chucked
  chunk
  cuke
  deck
  decked
  deke
  deked
  duck
  ducked
  duke
  duked
  dunk
  dunked
  eked
  heck
  hunk
  keen
  keened
  knee
  kneed
  kudu
  neck
  necked
  nuke
  nuked
  nunchuck
  nunchuk
  uncheck