Center letter: o
Outer letter: a g l n p y
Answers (70):
  nonapology
  polygonal
  agog
  agony
  alloy
  along
  analog
  analogy
  annoy
  anon
  apology
  gallon
  gallop
  galop
  gloop
  gloopy
  glop
  gloppy
  goal
  goggly
  golly
  gong
  gonna
  googly
  googol
  goon
  goony
  goop
  goopy
  lagoon
  llano
  loan
  logo
  logy
  loll
  lollop
  lollygag
  long
  longan
  loon
  loony
  loop
  loopy
  loyal
  loyally
  nonagon
  nonagonal
  noon
  nylon
  onlay
  only
  oolong
  opal
  panoply
  payola
  plop
  ploy
  pogo
  poll
  polo
  polygon
  polyp
  pong
  pony
  pool
  poop
  poppa
  poppy
  pylon
  yoga