Frequency - Word Form
  1 object
  1 objects
  1 obliged
  4 observation
  2 observations
  1 observatory
  1 observe
  2 observed
  1 observer
  1 obstructed
  1 obstructing
  1 obstruction
  2 obtain
  3 obtained
  1 occupied
290 of
  5 off
 31 on
  2 once
 29 one
  1 one-half
  1 one-tenth
  1 one-third
  4 ones
 14 only
  5 opposite
 18 or
  1 orbit
  2 order
  2 ordinary
  1 organized
  1 originality
  1 orion
 14 other
  1 others
  1 otherwise
 28 our
  1 ourselves
  7 out
  3 outside
  1 over
  4 own