Center letter: c
Outer letter: e f i n o t
Answers (61):
  coefficient
  confection
  confetti
  infection
  cent
  cite
  cocci
  cocoon
  coffee
  coffin
  coif
  coin
  conceit
  concoct
  concoction
  cone
  confect
  confine
  confit
  conic
  connect
  connection
  connote
  content
  contention
  continence
  continent
  coot
  cootie
  cote
  cotton
  ecotone
  effect
  efficient
  entice
  fence
  fiction
  foci
  icon
  iconic
  incite
  incontinence
  incontinent
  inefficient
  infect
  innocence
  innocent
  ionic
  neocon
  nice
  nicotine
  niece
  nonce
  nonfiction
  notice
  octet
  office
  once
  tectonic
  tinct
  tonic