- on the side of
- offer prayers
- over-trustful
- obtrude
- of high standing
- on the best of terms
- one and the same
- octad
- overspread
- one's bag
- odds-on
- omposite
- oozing
- overhanging
- out of debt
- of prime importance
- offer suggestions
- offer one's life
- on account
- offer for sale
- OAPs
- object of virtue
- on one's side
- open to error
- oxygenate
- on impulse
- ooze out
- over-reach
- observer viewers audience
- outburst of rage
- overturned
- on a weekly basis
- outcasts
- overplaying
- overwinter
- obtaining
- old-age pensioner
- onetime
- opacity
- on the outskirts
- older
- of great consequence
- of use
- odinarily
- obedience
- ordnance depot
- open to the weather
- overuse
- on an incline
- out in the front
- overdraft
- occurring recently
- on a grand scale
- overdrawn
- out-turn
- oil
- operte
- over here
- open the door to
- outage
- outward form
- opposite pole
- opportunely
- outward appearance
- over-dramatic
- over-embroider
- overtly
- overbright
- overestimate
- overdrink
- on the agenda
- octaves
- oxidized
- obscuring
- onlookers
- out of the corner of one's eye
- on the wing
- once again
- own up to
- of incalculable worth
- out and out
- open to bribery
- old wives' tale
- on one's front
- open-mindedness
- overprotected
- over-optimistic
- operable
- on special offer
- oneself
- out of the limelight
- occur in rotation
- open to argument
- outer space
- outer side
- other team
- one way or another
- otherwise known as
- on the grapevine
- of the same opinion