Center letter: m
Outer letter: a e h n o p
Answers (41):
  phenomena
  ahem
  amen
  ammo
  anemone
  apeman
  apemen
  enema
  heme
  hemp
  home
  homophone
  mama
  mamma
  mammon
  mane
  manna
  mean
  meme
  memo
  moan
  momma
  mono
  moon
  mope
  name
  omen
  oompah
  oomph
  pampa
  panama
  penman
  penmen
  phenom
  phenomenon
  phoneme
  poem
  pome
  pomp
  pompano
  pompom