Center letter: n
Outer letter: e g i p u x
Answers (46):
  expunging
  egging
  engine
  ennui
  expunge
  gene
  genie
  genii
  genuine
  gigging
  ginning
  gunning
  ingenue
  innie
  inning
  nene
  nine
  ninepin
  nipping
  nixing
  peeing
  peen
  peeping
  pegging
  penguin
  penne
  penning
  pepping
  pigging
  pigpen
  pine
  ping
  pinging
  pining
  pinning
  pinup
  piping
  pippin
  punning
  unpeg
  unpegging
  unpen
  unpenning
  unpin
  unpinning
  upping