Center letter: m
Outer letter: a c e h i t
Answers (55):
  mathematic
  thematic
  acme
  ahem
  came
  cami
  chime
  emaciate
  emcee
  emetic
  emit
  hamachi
  hamate
  hematite
  heme
  imam
  imitate
  item
  mace
  machete
  mahatma
  mahimahi
  maim
  mama
  mamma
  match
  matcha
  mate
  math
  matte
  meat
  mecca
  meet
  meme
  memetic
  meta
  mete
  meth
  mica
  mice
  mime
  mimetic
  mimic
  mite
  mitt
  tame
  tatami
  team
  teammate
  teatime
  teem
  them
  theme
  time
  titmice