Center letter: g
Outer letter: a n o r t u
Answers (55):
  argonaut
  guarantor
  orangutan
  agar
  agog
  agora
  angora
  argon
  argot
  arrogant
  augur
  gaga
  gang
  gargantuan
  gator
  gaunt
  gnat
  goat
  gong
  gonna
  goon
  gorgon
  gotta
  gout
  gran
  grant
  grantor
  groan
  groat
  grog
  grotto
  grout
  grunt
  guano
  guar
  guru
  nonagon
  nougat
  orang
  organ
  outgo
  outgun
  raga
  ragout
  ragtag
  ragu
  rang
  rotgut
  rung
  tang
  tango
  tarragon
  toga
  tong
  untag