Center letter: a
Outer letter: g i l n o z
Answers (62):
  analogizing
  gazillion
  again
  aging
  agog
  agonizing
  ailing
  aioli
  alga
  algal
  align
  aligning
  along
  anal
  analog
  angina
  angling
  anion
  annal
  anon
  gaga
  gagging
  gain
  gaining
  gala
  galangal
  gall
  galling
  gallon
  gang
  ganging
  ganglia
  gangling
  ganglion
  gazing
  glazing
  glia
  goal
  gonna
  lagging
  lagoon
  lain
  lanai
  lanolin
  lazing
  llano
  loan
  loaning
  loggia
  longan
  naan
  nagging
  nail
  nailing
  nana
  nonagon
  nonagonal
  zagging
  zigzag
  zigzagging
  zinnia
  zonal