Center letter: r
Outer letter: a i j n o t
Answers (67):
  janitor
  ajar
  annotator
  aorta
  aria
  arrant
  atria
  attar
  attrition
  initiator
  intro
  iron
  irritant
  irritation
  narration
  narrator
  nitro
  noir
  nonart
  nori
  notator
  oration
  orator
  oratorio
  rain
  raita
  raja
  rani
  rant
  ratatat
  ratio
  ration
  rattan
  rioja
  riot
  roan
  roar
  root
  rotation
  rotator
  roti
  rotini
  rotor
  tantara
  tantra
  tarnation
  taro
  tarot
  tart
  tartan
  tartar
  tiara
  titration
  tori
  torii
  torn
  toro
  tort
  torta
  tortoni
  train
  trait
  traitor
  trattoria
  trio
  triton
  trot