Center letter: u
Outer letter: a m n o t y
Answers (30):
  autonomy
  amount
  aunt
  aunty
  auto
  automat
  automata
  automaton
  autumn
  mount
  mummy
  mutant
  mutt
  mutton
  muumuu
  noun
  nutty
  outman
  tantamount
  taunt
  taut
  tout
  tummy
  tuna
  tutu
  unman
  unmount
  unto
  yuan
  yummy