'o' index:
o
obs <=> poet
oC
OCR
Oct => 97
oes
of
office <=> post
officer <=> офицер
oft => pl
OK => b
old
Olga => wrote
ON
once
one
oneself => to
only => if
oo => o
OOO <=> Hell
open => wide
operative <=> co
opinion
or => other
org
os
other
out
Outlook => express
own
