Center letter: o
Outer letter: a i l n t v
Answers (63):
  innovational
  invitational
  violation
  volitional
  aioli
  allot
  alto
  anion
  annatto
  annotation
  anoint
  anon
  atoll
  atonal
  aviation
  initiation
  innovation
  into
  intonation
  invitation
  iota
  lanolin
  lion
  llano
  loan
  loin
  loll
  loon
  loot
  lotion
  lotto
  nation
  national
  nonillion
  noon
  notation
  notational
  notion
  notional
  nova
  novation
  olio
  onion
  onto
  oval
  ovation
  talon
  tattoo
  titillation
  toil
  toll
  tonal
  tool
  toon
  toot
  total
  viol
  viola
  violin
  voila
  volant
  volition
  volt