Frequency - Word Form
  38 o
   1 oar
   2 oars
   1 oases
   2 oasis
   1 obedience
   1 obediently
   1 obey
   1 obeyed
   8 object
   1 objectives
   2 objurgations
   1 obliged
   1 oblique
   8 obliquely
   1 obscurity
   1 obsequies
   9 observation
   6 observations
   6 observatories
  14 observatory
   1 observe
   6 observed
   4 observers
   1 obsidian
   2 obstacle
   1 obstinacy
   2 obstinately
   1 obstreperous
   6 obtain
   6 obtained
   3 obvious
   4 occasion
   5 occasionally
   1 occasioning
   3 occupied
   2 occupy
   2 occur
   8 occurred
   1 occurrence
   1 occurring
  13 ocean
   1 oceania
   1 oceans
   1 ochre-colored
   1 octave
   3 odor
   2 odors
2064 of
  67 off
   1 offense
   1 offer
   6 offered
   1 offering
   2 offers
   1 offices
   1 offing
   3 often
   1 oftener
   5 oh
   1 ohio
   1 oiliness
   2 okhotsk
  19 old
   1 oleander
   1 olfactory
   5 omaha
   1 omelette
   1 omitted
 390 on
  13 once
 144 one
   2 ones
 100 only
   2 ontario
   4 onto
   1 opalescent
  10 open
  13 opened
   1 opening
   1 opens
   4 operation
   2 opinion
   1 opinions
  11 opportunity
   2 oppose
   1 opposed
   1 opposing
   5 opposite
   1 opposition
   2 optical
 173 or
   1 orange-trees
   1 orbit
   2 orchestra
  10 order
   2 ordered
   8 orders
  11 ordinary
   2 oregon
   2 organ
   1 organs
   2 origin
   1 original
   1 ornamental
   2 ornithopter
   1 ornithopters
   1 orographic
   1 orographical
   1 orthopteric
   1 orthopters
   1 oscillating
   1 ossuary
   2 ostrich
   1 ostriches
  50 other
  18 others
   5 otherwise
   3 ottawa
  14 ought
  24 our
   2 ours
   6 ourselves
  88 out
   1 outbreak
   1 outburst
   2 outfit
   1 outflanked
   2 outline
   1 outpost
   1 outrage
   1 outrageous
   3 outside
   1 outskirts
   2 outstripped
   1 ouverture
   1 oval
 144 over
   9 overboard
   1 overcome
   1 overflow
   3 overhead
   1 overheard
   1 overpassed
   1 overrun
   1 overwhelm
   2 overwhelmed
   1 overwhelming
   1 ovine
   7 owing
  11 own
   1 owned
   1 owner
   1 oxford
   3 oxygen