- outmarch
- outsail
- outstay welcome
- outpace
- outroar
- outrange
- out_herod
- outvie
- one's lineage to come to an end
- once current in asian and european countries
- one lamp kindles another
- organised by
- organized
- oil change
- occlusal force
- operand field
- operational
- operational sign
- operational mode
- operational unit
- operational fatigue
- outrage
- outmost
- out of gear
- out of hands
- one who carries away forcibly
- one who casts a spell of charm
- on paper
- obstinate zone
- one who practises
- out of whack
- onesie
- one who does not appreciate merit
- operant
- oral contract
- one who holds a rent_exempted land
- out front
- on no condition
- overachievement
- origination
- one who perpetually pesters by talking
- one who performs miracles
- original
- original text
- omission
- on the wing
- outlay
- outline
- outliers
- one who saves somebody's life