Center letter: e
Outer letter: h i n p y a
Answers (34):
  epiphany
  apnea
  epee
  happen
  heap
  heinie
  henna
  hippie
  hyena
  hype
  hyphen
  inane
  innie
  nape
  neap
  nene
  nine
  ninepin
  paean
  pane
  payee
  peahen
  peen
  peep
  penne
  penny
  peppy
  pine
  piney
  pipe
  yeah
  yipe
  yippee
  yippie