Center letter: m
Outer letter: a d i l n t
Answers (56):
  dalmatian
  adamant
  adman
  admin
  admit
  amid
  anima
  animal
  dammit
  damn
  imam
  lama
  lamina
  laminal
  lima
  liminal
  limit
  limn
  llama
  madam
  madman
  maid
  mail
  mailman
  maim
  main
  mainland
  maintain
  mall
  malt
  mama
  mamma
  mammal
  mammalian
  mandala
  mania
  manila
  manna
  manta
  mantilla
  midi
  midland
  mild
  militant
  militia
  militiaman
  mill
  mind
  mini
  minim
  minima
  minimal
  mint
  mitt
  tatami
  timid