Frequency - Word Form
  1 objective
  2 objects
  1 observing
  3 occur
  1 occurred
  1 occurrence
  1 occurs
  1 odd
  1 oesophagus
 77 of
  2 off
  2 often
 10 on
  1 once
 12 one
  4 only
  1 operate
  1 operation
  1 opinion
  1 opposite
 30 or
  1 order
  1 organism
  2 original
  7 other
  1 others
  1 ought
  2 our
  1 ourselves
  1 out
  1 over
  4 owing
  1 own