offender against the law - organic
- on the docket
- on the edge
- on the edge of
- on the face of the matter
- on the first view
- on the fringe of society
- on the horizon
- on the increase
- on the journey
- on the market
- on the merits
- on the other hand
- on the person
- on the pleadings
- on the road
- on the same footing
- on the same level
- on the same matter
- on the spot
- on the stand
- on the verge of
- on the wane
- on the way
- on the whole
- on this account
- on time
- once
- once more
- oncoming
- one
- one after another
- one after the other
- one and all
- one and the same
- one at a time
- one authorized to deliver a verdict
- one by one
- one called to the bar
- one engaged in a manual enterprise
- one engaged in buying and selling