Frequency - Word Form
   1 oaken
   3 object
   3 obliged
   2 oblique
   3 obliquely
   5 oblong
   2 observation
   3 observations
   2 observe
   1 obstacle
   1 obstinate
   1 obstruction
   1 obtain
   1 obtained
   1 obtuse
   1 obviate
   3 obvious
  10 occasion
   5 occasions
   1 occupy
  12 occur
   2 occurred
   2 occurrence
   8 occurs
 987 of
  18 off
   1 office
   2 offices
   5 often
   1 oil
   9 old
   2 olecranon
   1 omitted
 174 on
   3 once
 136 one
  22 only
   6 open
   4 opened
   5 operate
   1 operates
   1 operating
   2 operation
   1 operations
   4 operator
   2 opinion
   1 opinions
   1 opportunity
   1 oppose
  15 opposite
 188 or
   9 order
   8 ordinary
   1 organs
   3 origin
   1 originating
   7 os
   1 osseous
   1 ostentatious
 103 other
  18 others
  16 otherwise
   9 ought
  15 out
   2 outer
   5 outside
  50 outward
  14 over
   2 overcome
   1 overtopping
  10 owing
   6 own
   4 ox
   2 oxen
   1 oxyglyky