Center letter: b
Outer letter: e g m n o y
Answers (29):
  bogeymen
  been
  begem
  begone
  bogey
  boggy
  bomb
  bombe
  bonbon
  bone
  bong
  bongo
  bonny
  bonobo
  bony
  boob
  booboo
  booby
  boom
  boomy
  boon
  bygone
  ebon
  ebony
  enby
  goby
  noob
  obey
  oboe