The best replacement for o is 0.

The best alternatives to o are rated as following:
★★★★★  0
★★★★  oh
★★★★  ka
★★★  le reve
★★  mystere
★★  othello
★★  u spanish
★  o2
★  u
★  zero
★  m d
★  outboard
★  new jersey
★  zumanity
★  ó
★  ho
★  g gauge
★  osu
★  foxy brown
  ou
  arcp
  w
  o27
  o
  la reve
  short o
  zarkana
  wa japanese
  b heat pump
  butterball turkey
  attn
  oregon state
  long o
  care of
  ho gauge
  flex i\/o
  trina
  cl more electronegative
  washington state
  khia
  n more electronegative
  jay z

Your alternative for o is not listed? Suggest!
Speaking about o, one probably shouldn't forget about accent.

Other search terms related to o and their ratings are:
★★★★★ accent
★★★ umlaut
★★ tilde
You have in mind a companion for o and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of o in all years. Click on graph for more.
o
0
oh