Center letter: t
Outer letter: b g h o r u
Answers (49):
  brought
  boot
  booth
  both
  bought
  bout
  broth
  brut
  burbot
  butt
  goth
  gout
  grotto
  grout
  hoot
  hurt
  ought
  outgo
  outro
  outthought
  robot
  root
  rotgut
  rotor
  rout
  thorough
  thou
  though
  thought
  throb
  through
  throughout
  thug
  toot
  tooth
  toro
  tort
  tough
  tour
  tout
  trot
  troth
  trough
  trout
  truth
  turbo
  turbot
  tutor
  tutu