- on the bread line
- over-peopled
- order to
- of one's own choosing
- once upon a time
- overgrown
- obeying
- outlawed
- outlawing
- other man
- overruling
- on remand
- oxidize
- obstructed
- occultism
- obsessive about
- obesity corpulence
- on the road to recovery
- one's declining years
- off-centre
- ovenproof
- over-brim
- odiousness
- osculation
- old lag
- opress
- overset
- on the same wavelength
- overdose
- overlooked
- on the qui vive
- old stager
- objecting
- or thereabouts
- ordinances
- on the stocks
- over-critical
- on the barrelhead
- overplayed
- other than
- over-wrought
- one's cross to bear
- overcrowd
- on welfare
- owners
- oblate
- open to attack
- overacted
- on the outs
- overfamiliar
- of substance
- out of humour
- on one's last legs
- of importance
- on full alert
- offentimes
- on the doorstep
- obsecration
- on pins and needles
- ordinal number
- one-on-one
- out-of-towner
- on the skew
- overhadow
- olde worlde
- occurrences
- over-dramatized
- one's salad days
- offprint
- of consequence
- off target
- obligingly
- overemphasized
- on the wallaby track
- offcuts
- out of sort
- of good report
- over and above that
- one's portion
- overkill
- outside of
- old wives' tales
- on the stroke of something
- oojamaflip
- on the blink
- owner-occupancy
- outer limits
- overwight
- oojamafflip
- oddball
- on the go
- over the fence
- overelaborate
- oldsters
- outbalance
- out of step with
- oojah
- owner-occupier
- opium
- on the streets